Collection Event (BATTD)

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The Easter version of the Collection Event

The Collection Event is a type of seasonal event in Bloons Adventure Time TD. During the event, the player can play on "challenge maps" to earn Tapes that contribute to decoding a message. The player earns a prize for every 20 Tapes they earn, and earning all the prizes earns a Legendary wish orb. The player can earn additional rewards by completing challenge maps without letting Bloons destroy the Special Gift that spawns on the track.

Variants

There are four variants of the Collection Event, though their differences are purely aesthetic. Each variant is associated with a specific holiday or time period and is run once per year around that time, lasting for two weeks.

Name	Availability
Springtime Surprises	Easter
Firework Fun!	Early-mid July, corresponding to multiple national holidays in that period that are typically celebrated with fireworks (American Independence Day, Canada Day, Bastille Day, etc)
Hall-ooo-ween	Halloween
Holly Jolly Secrets	Christmas

Mechanics

Challenge maps

The player progresses the event by playing random challenge maps and earning Tapes. Any map except Candy Graveyard, Cursed Mirrors, Fire Trap, Heirophant's Forest, or Infinity can appear in the event, even maps exclusive to premium Adventures. Instead of using their difficulty modifiers when playing normally, challenge maps use the difficulty modifiers of one of the following maps at random:

• Apple Forest
• Tree Trunks' House
• Lava Pools
• Fire Trap
• Candy Throne Room
• Tear Drops
• All Aboard
• Train Armory
• Crystal Ants
• Infinity
• Enchiridion
• Black Heart
• Igloos
• Chamber Of The Frozen Blades
• Crown Capers
• Mountain Path
• Desert Of Wonder
• Lady's House
• Pizza Sassy's
• Back Door
• Lemongrab Fortress
• Reconditioning Chamber
• Sinister Caves
• Loch of Phantoms
• Cursed Mirrors
• Candy Fountain
• Path Choice
• Sinking
• River Run
• Underwater Mall
• Candy Convenience Store
• Candy Dungeon
• Candy Kingdom Streets
• Over-Throne Room
• Flame Kitchen
• Behind the Scenes
• Showtime
• Empress Throne
• Pep But's Lab
• Crying Mountain
• Roughhouser Village
• Supermonkey Villa
• Ice King's Throne Room
• Snow Plains
• Mystery Doors
• Wizard Royale

After completing a challenge map, the next map becomes available after four hours. The player can spend gems to speed it up, at a rate of  1 per 4.8 minutes.

Special Gift

The Special Gift is an object that appears on the path on challenge maps. It will destroy the first non-MOAB-Class Bloon on contact, but if left intact, the gift will open and grant the player an additional reward upon completing the challenge map.

Rewards

Tapes

The number of tapes the player earns from completing a challenge map depends on the difficulty. The player can spend 20 Tapes to unlock one of the prizes. It takes a total of 480 Tapes to unlock all prizes.

Normal	10
Hard	15
Extreme	20
Impoppable	25

Prizes

The rewards of each square on the grid is predetermined, but the order they unlock in is random. Opening all 24 of the prizes rewards one Legendary wish orb on top of the prize for the last square revealed.

Epic equipment	Super Rare equipment	Super Rare equipment	Rare equipment	Rare equipment	Uncommon weapon
Uncommon trinket	Uncommon ally	Common equipment	Uncommon weapon	Common trinket	Common ally
×1	×1	×1	100	50	10
1,000	500	100	200	100	20

Special Gift

Difficulty	40%	40%	5%	15%
Normal	10	×1	×1	Random character resource ×1
Hard	15	×1	×1	Random character resource ×2
Extreme	20	×1	×1	Random character resource ×4
Impoppable	25	×1	×1	Random character resource ×8

Gallery

Springtime Surprises

• 
  Title screen
• 
  Grasslands
• 
  Candy Kingdom
• 
  Ice Kingdom
• 
  Badlands
• 
  Fire Kingdom
• 
  Lemongrab
• 
  Underwater City
• 
  Haunted Swamp
• 
  Lumpy Space
• 
  Special Gift
• 
  Loot Chest
• 
  Info pop-up
• 
  Menu
• 
  "Not enough tapes" message
• 
  Speed up pop-up
• 
  Completion pop-up
• 
  Full image

Firework Fun!

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Hall-ooo-ween

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Holly Jolly Secrets

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• 
  Title screen
• 
  Grasslands
• 
  Candy Kingdom
• 
  Ice Kingdom
• 
  Badlands
• 
  Fire Kingdom
• 
  Lemongrab
• 
  Underwater City
• 
  Haunted Swamp
• 
  Lumpy Space
• 
  Completion pop-up
• 
  Full image