Blastapopoulos (BTD6)

Blastapopoulos iterations: BMC • BTD5 • BSM2 • BTD6

Blastapopoulos Demon of the Core
NormalElite
Skulls 4 (normal) 7 (elite) Theme Onslaught Introduced Version 45.0 Description • Blastapopoulos has Purple Bloon properties, and Monkey Towers and Heroes suffer from reduced range and slower ability cooldowns during the fight. • At each Skull Blastapopoulos heats up and spews out Fireballs and Pyroclastic Rocks. Fireballs will target Towers and Heroes with pools of magma that prevent selling and ability cooldowns, and reduce tower range and attack speed even more. Pyroclastic Rocks land in a circle, blocking line of sight until they expire. • Most projectile hits heat up Blastapopoulos, with fire, plasma, and lasers increasing heat even more, so use those at your own risk! Or you could use some Ice attacks to cool Blastapopoulos down! When the heat bar is completely filled, Blastapopoulos explodes in rage, briefly stunning all Monkeys and increasing ability cooldowns. The leftover heat causes most projectiles to burn up faster than normal. • Blastapopoulos passively burns off Sticky Bomb and other damaging effects applied to them, reducing the length of damage over time.

Blastapopoulos, titled Demon of the Core, is a Boss Bloon in Bloons TD 6 introduced in version 45.0. It is the sixth Boss Bloon added to BTD6 and the fourth returning boss following Dreadbloon.

Blastapopoulos's battle focuses on meter management and tower debuffs. Blastapopoulos has the same immunities as a Purple Bloon and reduces the duration of damage over time effects applied to it. It has a Heat meter that fills when it gets hit by most projectiles. Energy, Plasma, and Fire projectiles provide more Heat, while Cold and Glacier projectiles reduce Heat, even if their damage types are overridden by buffs such as MIB. When its Heat meter is full, it releases a heatwave that briefly stuns all towers, extends all Ability cooldowns, and reduces the lifespan of all projectiles for a short time. Each time it reaches a skull, it fills a portion of its Heat meter and shoots Fireballs and Pyroclastic Rocks. Fireballs target towers, creating pools of magma that debuff them and all towers close by, while Pyroclastic Rocks surround Blastapopoulos to protect it until they expire.

Mechanics

General

Blastapopoulos has the Purple property, granting it immunity from all attacks that cannot damage Purple Bloons. Every 2 seconds, Blastapopoulos removes all damage-over-time effects from itself, including Sticky Bomb and its upgrades.

While Blastapopoulos is active, all towers on screen get their range reduced by 8%. Also, the cooldown rate of all activated abilities are slowed by an amount which depends on the boss' tier.

Tier	Ability cooldown increase
1	+10%
2	+15%
3	+20%
4	+25%
5	+30%

Heat

Heat is one of Blastapopoulos' mechanics, which is indicated by a heat bar under its health bar. Blastapopoulos spawns in with no heat. Blastapopoulos gains or loses heat every time it is hit by a projectile, depending on whether the projectile can damage Purple or White Bloons naturally (that is, without any buffs or outside enhancements).

Type of projectile	Heat gained/lost
Cannot damage Purple Bloons	+2
Cannot damage White Bloons but can damage Purple Bloons	–15 (Tier 1) –30 (Tier 2) –60 (Tier 3) –90 (Tier 4) –120 (Tier 5)
Other	+1

Some towers' attacks have special properties that affect how much heat they add or remove:

• Snowstorm ability: -2,000 heat
• Absolute Zero ability: -6,000 heat
• Icicles: -50 heat
• Icicle Impale:
  • Blast: -500 heat
  • Icicles: -10 heat
• Herald of Everfrost:
  • Ice Lance Beam: -600 heat
  • Ice Shards: -60 heat
  • Snowstorm Roar: -6,000 heat
  • Eclipse of Fimbulwinter ability: -10,000,000 heat
• Arctic Knight ability: -50 heat
  • Need support to deal damage, or still increases heat
• Popseidon ability: -100 heat
  • Need support to deal damage, or still increases heat
• Silas:
  • Frozen Cascade blasts: -500 heat
  • Frozen Burial ability: -8,000 heat

Blastapopoulos will immediately gain a certain amount of heat when an Activated Ability is used. The amount of heat gained is based on the cooldown of the ability in seconds multiplied by a base value that depends on Blastapopoulos's current tier. Abilities that reduce heat, as well as those from Heroes and Powers, are not subject to this penalty.

Tier	Base heat gain
1	4
2	15
3	75
4	150
5	750

Blastapopoulos's maximum heat depends on its tier.

Tier	Maximum heat
1	1,750
2	6,500
3	30,000
4	65,000
5	300,000

Blastapopoulos also loses heat every frame:

• If the heat has not increased for 2 seconds, reduces 0.2 heat
• If the heat has increased in 2 seconds, reduces 0.1 heat, then reduces $\frac{\text{heat}}{\text{max heat}}\times 0.5$ heat

Overheat

When its heat reaches the maximum, Blastapopoulos enters an Overheat state for 20 seconds, causing several negative effects to towers (except for Ice Monkeys and Silas, who are immune):

• All existing towers are stunned for 4 seconds, during which they cannot attack, use abilities, or be sold. Newly placed towers during the overheat duration are also stunned for 4 seconds.
• All ability cooldowns are immediately increased by +10 seconds, increased to +15 for Elite Blastapopoulos, and do not tick down during the stun duration.
• All projectiles have their lifespans reduced to 0.2 seconds for the overheat duration.

After the overheat duration ends, its heat bar will rapidly drain to 0 over several seconds, during which all projectiles can not add or remove any heat.

Skulls

When a skull on its health bar is reached, Blastapopoulos shoots up to three towers with fireballs and creates Pyroclastic Rocks near itself, then gains 25% of its heat meter. Blastapopoulos cannot be targeted by attacks for 2 seconds upon reaching a skull.

A single attack cannot damage past a skull; for example if an attack normally deals 4,500 damage and Blastapopoulos has only 1,000 health remaining to the next skull, that attack deals only 1,000 damage.

Fireballs

Blastapopoulos shoots one fireball for every 25% of Heat it currently has, with no fireballs being shot below 25% Heat and three being shot above 75%. The fireballs target the closest, farthest, and most expensive tower on the screen in order. If targeted by a Fireball, towers cannot be sold even before the Fireball hits. When the Fireball lands, it creates a magma pool on the targeted tower, stunning towers touching the pool for 1.5 seconds. While a tower touches a magma pool its attack cooldowns are increased by +50%, its range is decreased by another 20%, its projectile speeds are decreased by 50%, and it cannot be sold. Magma pools last for 15 seconds, and have a radius of 30 units.

Pyroclastic Rocks

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Blastapopoulos creates an ring of evenly spaced Pyroclastic Rocks which block towers' line-of-sight and serve as walls. Pyroclastic Rocks last for 12 seconds. Normal Blastapopoulos creates 6 Pyroclastic Rocks at each skull in a radius of 65, and Elite Blastapopoulos creates 8 Pyroclastic Rocks in a radius of 60. The angle of the ring of Pyroclastic Rocks does not change based on Blastapopoulos' angle.

Boss Rush

Blastapopoulos's heat meter increases by 1.5% each time it pops. During Overheat, it stuns all towers for 4 seconds and increases ability cooldowns by 10 seconds (unaffected by number of pops). Every 10 pops, it activates Fireballs and Pyroclastic Rocks and gains 15% of its heat meter.

Stats

Speed

Tier	Base speed	Red Bloon speed
1	1	0.04×
2	1.05	0.042×
3	1.1	0.044×
4	1.15	0.046×
5	1.25	0.05×

Normal

Base health

Tier	1-player	2-player	3-player	4-player
1	17,500	21,000	24,500	28,000
2	65,000	78,000	91,000	104,000
3	300,000	360,000	420,000	480,000
4	650,000	780,000	910,000	1,040,000
5	3,000,000	3,600,000	4,200,000	4,800,000

Fireball stun

Tier	Duration
1	1.5s
2	1.5s
3	1.5s
4	2s
5	2s

Elite

Base health

Tier	1-player	2-player	3-player	4-player
1	43,000	51,600	60,200	68,800
2	270,000	324,000	378,000	432,000
3	1,700,000	2,040,000	2,380,000	2,720,000
4	7,000,000	8,400,000	9,800,000	11,200,000
5	35,000,000	42,000,000	49,000,000	56,000,000

Fireball stun

Tier	Duration
1	2s
2	2s
3	2s
4	3s
5	3s

Round changes

When facing Blastapopoulos, some rounds are modified from the standard roundset. These rounds are identical to the ones used by Bloonarius, Phayze, and Diamondback.

№	Default				Modified
	Bloon groups	Dur.	Base RBE	Base cash	Bloon groups	Dur.	Base RBE	Base cash
40	MOAB×1	1.00s	616	$381	Ceramic×6	18.00s	624	$570
60	BFB×1	1.00s	3,164	$762.5	MOAB×6	30.00s	3,696	$1,143
80	ZOMG×1	2.00s	16,656	$1,220.2	BFB×6	30.00s	18,984	$1,830
100	BAD×1	0.10s	56,584	$1,334.6	ZOMG×2 DDT×3 ZOMG×2 DDT×3	15.10s	72,368	$2,669

Strategy

For more in-depth strategies, see Strategy:Blastapopoulos (BTD6).

This section was last updated for: version 54.0

Blastapopoulos is a Boss that counters strategies that are focused on abilities and spamming of many low damage projectiles. As Blastapopoulos can also limit the effectiveness of towers further away from itself using Pyroclastic Rocks or Overheat's projectile burning, it is best fought at point-blank range using towers that can pull their weight using only their base attacks.

While engaging with the Heat mechanic is far from necessary to defeat Blastapopoulos, it can make the fight decently easier by reducing the risk of overheating while preventing it from debilitating key towers using its Fireballs. Icicles in particular is a relatively inexpensive option that is capable of heavily suppressing Heat by itself at Tier 1 thanks to having bonus Heat reduction and fast attack speed, while Icicle Impale can do an even better job in later tiers. Silas can assist in cooling using his abilities and his orbiting ice shards, and at Level 13 can allow for the building of a second Icicle Impale. While Tier 5 (particularly on Elite) is very difficult to stop from heating up due to the immense Heat gain on skulls, the Herald of Everfrost is able to almost single-handedly keep it in check. Should the player decide to ignore the mechanic, a secondary defense should be ready to handle the Bloons if the overheat happens at the wrong time (e.g. Perma-Spike or Spirit of the Forest).

Players can play around the increased ability cooldowns by using Geraldo's Rejuv Potion, which will make abilities immediately available, though they must be careful of the extra Heat added by ability uses.

Common defenses for Tier 1 and 2 include Elite Defender, M.A.D, Overdrive / The Tack Zone + Embrittlement, Avatar of Wrath + Poplust. and MOAB Eliminator. For Tier 2, if the player has access to Rejuv Potions, many Spike Storms are also a viable option. Tier 3 and higher can be defended with Paragons and/or VTSG; Apex Plasma Master gets a special mention because its juggernaut balls can bounce around inside the ring of Pyroclastic Rocks it spawns.

Sticky Bomb, Master Bomber and Ascended Shadow are poor options against Blastapopoulos because their bombs are considered a kind of damage over time that gets burnt before it has the chance to damage the boss.

If Blastapopoulos's heat is high enough to use fireballs, it will always target the closest, farthest and most expensive towers on the screen with its fireballs in order. The first two can be manipulated by placing inexpensive towers like Dart Monkeys right next to the track, the attacking towers a little bit further away and other cheap towers in a corner very far from the Boss so two of the fireballs are just wasted on irrelevant monkeys. A non-attacking tower like a Farm or Benjamin can also be placed far from the boss to bait the fireball.

While the least likely one to be fired, manipulating the most expensive tower fireball is a bit more difficult as in a lot of cases is just going to be the same tower that is used as the main attacking tower, but for Tiers 1 and 2 it can be baited with a Monkeyopolis. If it targets an attacking tower, additional defenses might be needed to deal with the regular Bloon rounds. If the player can obtain a Spirit of the Forest it can be used as bait for the most expensive tower as most of its damage comes from the thorns that are not affected by the magma pool, this enables using tier 5 towers that are cheaper than Spirit of the Forest to damage the boss like The Tack Zone, Super Brittle and Comanche Commander.

In Boss Rush, like many other bosses, the first pops of Blastapopoulos can be obtained from Sauda, MOAB SHREDR, Spiked Balls and Embrittlement. Druid of the Jungle can be used to deal with most of the regular spawns. Going into the middle game and late is where the strategy is different compared to other bosses, as going into an expensive tower or a Paragon is sometimes not worth it because is going to be stunned most of the time by the fireballs. Instead spamming many of the same tower is a more common strategy as if they get hit by the fireballs, the overall damage is not going to suffer a significant decrease. Comanche Defense is a common tower that can be spammed at this point of the game.

Pre-release

Version 44.0

Blastapopoulos was first mentioned in the update notes for version 44.0, confirming that it would release in version 45.0, would feature mechanics similar to its appearance in Bloons Monkey City, and was intended to be ready for Boss Rush on release.

“

Blastapopoulos returns! Expect this Boss to have abilities you might recall from Bloons Monkey City but with a massive set of BTD6 upgrades that will challenge tower selection and placement in entirely new ways. Goal is to have Blastie enabled for Boss Rush Events, too!

”

Version 45.0

Blastapopoulos was first shown to the public in previews for version 45.0. The update video included the first public gameplay footage, and the preview update notes included a summary of its mechanics and playstyle.

“

New Boss Bloon Blastapopoulos, the Demon of the Core has returned! While Blastapopoulos is in play, towers suffer from reduced range & ability cooldown rate. Blastapopoulos passively burns off any damaging effects applied to them, and has the Purple Bloon type property. You can support your towers with damage type enhancements to get around this as normal, but note that this doesn’t change projectile temperature! Overheating! Most projectile hits heat up Blastapopoulos, with anything weak to purple (fire, lasers & plasma) increasing heat even more, so use these damage types at your own risk or bring along some Ice attacks to cool things back down! Whenever maximum heat is reached Blastapopoulos vents the excess, briefly stunning towers & increasing ability cooldowns then superheating the area for a short time, causing all projectiles to burn up faster than normal. Skulls when triggered will fill up a portion of Heat, and spew out a number of Fireballs & Pyroclastic Rocks. These Fireballs will target your towers & create debuffing pools of magma around their targets while the Pyroclastic Rocks land around Blastapopoulos to form impenetrable barrier rings around the boss until they expire You’ll need to carefully manage your heat to avoid dire consequences!

”

Update history

General

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Version 45.1

•  Blastapopulous should no longer completely stop in place after reloading the round (bug fix)

Version 46.0

“

Blast has been quite unforgiving in Boss Rush events, so we’re squeezing in a reduction to both health and heat gain within this mode. — Update notes

”

•  Blastapopoulos (Boss Rush): Heat gain on each 'pop' reduced ― 0.02 → 0.015
•  Blastapopoulos (Boss Rush): Starting health reduced ― 400 → 350
•  Elite Blastapopoulos should now take extra damage from paragons (bug fix)
• Blastapopoulos can now appear in Contested Territory

Version 47.0

“

Especially at lower tiers, Blastapopoulos' stuns are quite unforgiving, so we’ve lowered the baseline stun duration & scaled this up over the tiers instead of starting off so high immediately. — Update notes

”

•  Heat Bar no longer fills immediately on Boss Spawn
•  Overheat: Initial stun duration reduced by 1s at all tiers ― 5s → 4s
•  Fireball (tier 1): Stun duration reduced ― 4s → 2s
•  Fireball (tier 2): Stun duration reduced ― 4s → 2s
•  Fireball (tier 3): Stun duration reduced ― 4s → 3s
•  Fireball (tier 4): Stun duration reduced ― 4s → 3s
•  Fireball (tier 5): Stun duration reduced ― 4s → 3s
  • Note: Both Normal and Elite are affected

Version 49.0

“

Now that BIastapopouIos is not as effective at stunning towers its own speed is also being scaled up giving a steady increase through the tiers[sic] — Update notes

”

•  Normal and Elite boss speed at Tier 2 and above increased
  • Tier 1 unchanged
  • Tier 2 ― 1 units/s → 1.05 units/s
  • Tier 3 ― 1 units/s → 1.1 units/s
  • Tier 4 ― 1 units/s → 1.15 units/s
  • Tier 5 ― 1 units/s → 1.25 units/s

Version 51.0

“

I’ve finally memorized how to spell it: 'Blastapopoulos'. & I've been here since the concept was first added back in Bloons Monkey City 😅. Also the boss is kinda hard — Update notes

”

•  Normal Tier 1−2 Fireball: Stun duration decreased ― 2.0s → 1.5s
•  Normal Tier 3 Fireball: Stun duration decreased ― 3.0s → 1.5s
•  Normal Tier 4−5 Fireball: Stun duration decreased ― 3.0s → 2.0s
•  Elite Tier 3 Fireball: Stun duration decreased ― 3.0s → 2.0s
  • Note: Tier 4 unchanged (3.0s)

Version 53.0

“

[While talking about Ice Monkey changes] We’re also increasing the soluopopatsalB counter potential here on middle and bottom paths. — Update notes

”

•  Heat: Snowstorm ability (X-4-X Ice Monkey) heat reduction increased ― -500 → -1,000
•  Heat: Absolute Zero ability (X-5-X Ice Monkey) heat reduction increased ― -1,500 → -3,000
•  Heat: Icicle Impale icicles (X-X-5 Ice Monkey) heat reduction increased ― -6 → -10

“

Blastapopoulos’ Rocks too often end up landing on a tower which takes it out of the game for a long time and hurts the intention of favouring closer range towers over long ones, to alleviate this we are cutting the rock duration in half and also increasing the radius of this rock circle so it becomes less likely to cover closeby towers. — Update notes

”

•  Pyroclastic Rocks (Normal): Radius increased ― 50 units → 65 units
•  Pyroclastic Rocks (Elite): Radius increased ― 50 units → 60 units
•  Pyroclastic Rocks (Normal and Elite): Duration reduced ― 24s → 12s

“

Blastapopoulos’ Rocks too often end up landing on a tower which takes it out of the game for a long time and hurts the intention of favouring closer range towers over long ones, to alleviate this we are cutting the rock duration in half and also increasing the radius of this rock circle so it becomes less likely to cover closeby towers. — Update notes

”

•  Resolved an issue where Blastapopoulos' Fireball spawn was doubled in Boss Rush (bug fix)

Version 54.0

•  Heat: Blastapopoulos can now store more heat before overheating:
  • Heat is currently unchanged, possibly a bug

•  Heat: Gain per hit with Fire, Frigid, Energy or Plasma attacks reduced ― +3 → +2
•  Heat: Loss per hit with Cold or Glacier attacks now increases with the Boss tier (was previously 5 in all tiers):
  • Tier 1 ― -5 → -15
  • Tier 2 ― -5 → -30
  • Tier 3 ― -5 → -60
  • Tier 4 ― -5 → -90
  • Tier 5 ― -5 → -120
•  Heat: Activated abilities now increase it, with the amount being proportional to the ability cooldown duration and the Boss tier
  • Note: Ice Monkey, Mermonkey, Hero and Power abilities do not not generate extra Heat
•  Heat: Reduction from abilities and certain attacks increased:
  • Silas Frozen Cascade ― -200 → -500
  • Silas Frozen Burial ― -2000 → -8000
  • Snowstorm ability ― -1000 → -2000
  • Absolute Zero ability ― -3000 → -6000
  • Absolute Zero ability ― -3000 → -6000
  • Cryo Cannon main attack ― -2 → -50
  • Icicle Impale main attack ― -30 → -500
  • Arctic Knight ability projectiles ― -10 → -50
  • Popseidon ability projectiles ― -10 → -100
•  Global range penalty reduced ― -15% → -8%
•  Fireballs: The amount of fireballs launched during a skull are now tied to Blastapopoulos' Heat and will now only release one for each 25% of its filled Heat meter. No fireballs will be launched if it is bellow 25% Heat and a maximum of 3 are launched at 75% or more heat
  • Note: Fireballs target Close, Far and Expensive, in that order

Version 55.0

•  Boss Rush: Starting cash increased ― $2,000 → $2,500

Rogue Legends

Version 51.0

•  Speed reduction on Final Boss tiles increased ― ×0.4 → ×0.34
•  Health on Final Boss tiles increased
  • Stage 1 ― 15,000 → 17,000
  • Stage 2 ― 60,000 → 68,000
  • Stage 3 ― 135,000 → 153,000
  • Stage 4 ― 225,000 → 255,000
  • Stage 5+ ― 90,000 × Stage − 135,000 → 102,000 × Stage − 153,000

Gallery

Screenshots

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• 
  Normal Blastapopoulos in the boss menu
• 
  Elite Blastapopoulos in the boss menu

Assets

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  Blastapopoulos
• 
  Elite Blastapopoulos
• 
  Blastapopoulos (defeated)
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  Elite Blastapopoulos (defeated)
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  Event icon
• 
  Blastapopoulos menu icon
• 
  Elite Blastapopoulos menu icon
• 
  Blastapopoulos medal
• 
  Elite Blastapopoulos medal
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