Spiked Mines
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 Spiked mines explode violently when they lose all their spikes.
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Spiked Mines is the Spike Factory's path 1 tier 4 upgrade in Bloons TD 6. It dispenses spiked mines instead of spiked balls. Each spiked mine has 18 pierce, dealing 2 damage, with +6 Ceramic damage, and +3 Fortified damage. Upon depletion, the spiked mine explodes over 30 blast radius (40 with Long Reach). The explosion deals 10 damage to all Bloon types without Black Bloon properties, deals +2 Ceramic and +3 Fortified damage, and ignites any non-Purple with a burning damage-over-time effect that inflicts 10 damage every 2 seconds for up to 6 seconds.
Stats
4-1-0
4-2-0
4-0-1
4-0-2
| Tower |
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| Targeting options | - Close
- Smart
- Automatic
- Set Target
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Costs and sell values
| Tiers
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Total cost
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Sell value
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| Easy
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Medium
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Hard
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Impoppable
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Easy
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Medium
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Hard
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Impoppable
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| 4-0-0
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$12,070 |
$14,200 |
$15,340 |
$17,040 |
$8,449 |
$9,940 |
$10,738 |
$11,928
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| 4-1-0
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$12,580 |
$14,800 |
$15,990 |
$17,760 |
$8,806 |
$10,360 |
$11,193 |
$12,432
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| 4-2-0
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$13,260 |
$15,600 |
$16,855 |
$18,720 |
$9,282 |
$10,920 |
$11,799 |
$13,104
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| 4-0-1
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$12,195 |
$14,350 |
$15,500 |
$17,220 |
$8,537 |
$10,045 |
$10,850 |
$12,054
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| 4-0-2
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$12,535 |
$14,750 |
$15,930 |
$17,700 |
$8,775 |
$10,325 |
$11,151 |
$12,390
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Strategy
Spiked Mines is mainly a mid-game upgrade, with the explosions greatly helping the tower's performance against mid-game Ceramic rushes and higher damage giving better layer skipping. It responds well to Berserker Brew and Jungle Drums support, and in late game it is somewhat stronger than its cost in Spiked Balls. The explosions become much harder to use late game, as their small radius limits their effectiveness against the lower density of Super Ceramics. Ceramic slowdown such as Arctic Wind can help clump Ceramics for better explosion damage, but means diverting more money away from late game blimp damage. The napalm DoT's chip damage can assist breaking down groups of Bloons, but generally not advised to revolve around.
Its higher cost means it is most useful on single exit maps such as Dark Castle, but it can also be useful on maps such as Ravine and Quad due to getting to cover multiple lanes there. Bottom crosspath with 4-0-2 is used on maps with split lanes (e.g. Ravine) and maps that have short exits, both of which require consistent placement of mines. Middle crosspath, which increases attack speed, is preferred for general consistency and on maps with overlapping lanes (e.g. Quad).
Update history
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Upgrade cost reduced ― $14,000 → $12,000
- Overall cost reduced by $2,200 (due to cost changes for previous tiers)
- Explosion: Damage increased ― 4 → 5
- Note: Does not apply to Super Mines
- Spike: Damage to Ceramics increased ― +2 → +3
- Explosion: damage increased by 5
- Base damage of each spike increased ― 1 → 2
| “
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[W]e made a couple small tweaks buffing what should be the ‘strength areas’ of a few of the more underperforming high tier Spike upgrades.
— Update notes
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”
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- Explosion: Blast radius increased ― 15 → 19
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We quite liked how the lifespan changes for xx1 spikes went previously, though this still wasn’t enough to make the path competitive and increasing this number further wouldn’t have much of an impact since most earlier rounds aren’t long enough. Spiked Balls strats have also felt too strong compared to higher tiers on top path, so touching on all of these issues slightly the base lifespan of spikes has been reduced, ceramic bonus increased on 4xx; and a new bonus added to 5xx.
— Update notes
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”
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Base projectile lifespan reduced ― 70s → 50s - Note: Long Reach lifespan remains at 100s
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Like a few other towers before it, the attack speed crosspath for Spike Factory has outshined the others. We have reworked the lower Spike Factory tiers to distribute this power more evenly while keeping high tier factories at a similar level of power.
— Update notes
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”
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- Overall cost increased by $200 (due to cost changes for previous tiers)
- Base spike factory rate increased ― 2.2s → 1.75s
- 4-1-0
- Rate reduced ― 1.32s → 1.4s
- 4-2-0
- Rate increased ― 0.99s → 0.98s
| “
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Spiked Balls are used quite a lot, but we like their overall position right now so they have had only a slight bump up in price, along with a bigger decrease to the price of T4 Spiked Mines.
— Update notes
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”
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- Upgrade cost reduced ― $12,000 → $11,000
- Overall cost reduced by $900 (due to cost changes for previous tiers)
| “
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Pierce amounts for Spiked Balls and Mines fits their use cases too awkwardly due to super ceramics. Considering the power of Spiked Balls, their pierce has been reduced slightly to add value to the pierce focussed higher tier in addition to a price cut for Spiked Mines.
— Update notes
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”
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- Upgrade cost reduced ― $11,000 → $9,500
- Pierce reduced ― 17 → 14
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Spike Factory 4xx feels it needs a small boost in order to really start feeling worth upgrading to rather than getting multiple T3s in the lategame due to the improved Spiked Mines pierce not being as needed for Super Ceramics.
— Update notes
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- Spiked Mines spikes bonus to fortified increased ― +1 → +3
- Spiked Mines explosions bonus to fortified increased ― +1 → +3
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Spiked Mines explosion radius doesn’t hit too much since it’s almost always centered just in front of the ‘first bloon in a pack’ to hit it in most effective use cases
— Update notes
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”
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- Explosion radius increased ― 19 → 30
| “
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Permaspike, while admittedly not often utilized to its max potential, has sat in a dominant high end position for a long time so we are shifting it away from such high pierce into more damage per pierce.
— Update notes
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”
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- Pierce per spiked ball reduced ― 14 → 12
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We’ve heard the feedback, so Spiked Mines get a tweak to get more mines exploding but with less pierce on each, to overall increase quality of life in more frequent use but less wasted pierce. This will help out with some of the problems it has scaling into late game super ceramics.
— Update notes
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”
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- Spike pierce increased ― 12 → 20
- Spiked Mines Explosion: pierce reduced ― 40 → 30
- Note: Super Mines explosion pierce remains at 60
- DoT: damage increased ― 1 → 10
| “
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Further balance for 401 crosspath, while this does already see some niche use it made sense to include increased explosion radius with the larger tower range.
— Update notes
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”
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- 4-0-1, 4-0-2
- Explosion: Radius increased ― 30 → 40
- Spike Factory no longer can shotgun spikes for exactly one frame after spawning (bug fix)
| “
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Small spike pierce reduction for the Spiked Mines as it’s finally coming into a strong spot on its own.
— Update notes
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”
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- Spike pierce reduced ― 20 → 18
- Damage over time: Duration increased ― 6.0s → 6.05s (bug fix)
- Note: This change solved an issue where the final tick of the damage was not being applied
Gallery
Screenshots
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Assets
In other languages
Name
| Language
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Text
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Notes
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| Arabic
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الألغام المسننة
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—
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| Danish
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Sømminer
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—
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| German
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Nagelminen
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—
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| Spanish
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Minas con clavos
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—
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| Spanish (Latin America)
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Minas con clavos
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—
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| Finnish
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Piikkimiinat
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—
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| French
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Mines pointues
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—
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| Italian
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Mine acuminate
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—
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| Japanese
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スパイク付き地雷
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—
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| Korean
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스파이크 지뢰
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—
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| Dutch
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Stekelmijnen
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—
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| Norwegian
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Spikerminer
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—
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| Polish
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Kolczaste miny
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—
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| Portuguese (Brazil)
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Minas de Espinhos
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—
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| Russian
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Шипованные мины
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—
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| Swedish
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Spikminor
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—
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| Thai
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กับระเบิดตะปู
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—
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| Turkish
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Dikenli Mayınlar
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—
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| Chinese (simplified)
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刺钉地雷
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—
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| Chinese (traditional)
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帶刺地雷
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—
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Description
| Language
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Text
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Notes
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| Arabic
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انفجار الألغام المسننة بعنف عندما فقدان جميع أشواكها.
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—
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| Danish
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Sømminer eksploderer voldsomt, når de mister alle deres søm.
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—
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| German
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Nagelminen explodieren heftig, wenn sie alle Nägel verloren haben.
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—
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| Spanish
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Las minas con clavos explotan con violencia cuando pierden todos sus clavos.
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—
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| Spanish (Latin America)
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Las minas con clavos explotan con violencia cuando pierden todos sus clavos.
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—
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| Finnish
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Piikkimiinat räjähtävät voimallisesti, kun ne menettävät kaikki piikkinsä.
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—
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| French
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Les mines pointues explosent violemment lorsqu'elles perdent toutes leurs pointes.
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—
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| Italian
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Le mine acuminate esplodono violentemente quando perdono tutti gli aculei.
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—
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| Japanese
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スパイク付き地雷のスパイクがなくなると、激しく爆破する。
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—
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| Korean
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스파이크를 모두 잃으면 스파이크 지뢰가 폭발합니다.
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—
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| Dutch
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Stekelmijnen exploderen heftig als ze al hun stekels verliezen.
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—
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| Norwegian
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Spikerminer eksploderer voldsomt når de mister alle spikerne sine.
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—
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| Polish
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Kolczaste miny brutalnie eksplodują, gdy stracą wszystkie kolce.
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—
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| Portuguese (Brazil)
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Minas de espinhos explodem violentamente quando perdem todos os espinhos.
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—
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| Russian
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Колючие ядра мощно взрываются, потеряв все шипы.
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—
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| Swedish
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Spikminor exploderar våldsamt när de förlorar alla sina spikar.
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—
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| Thai
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กับระเบิดตะปูระเบิดอย่างรุนแรงเมื่อสูญเสียตะปูทั้งหมดไป
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—
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| Turkish
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Çivili mayınlar tüm çivileri yok olduğunda şiddetli bir şekilde patlar.
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—
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| Chinese (simplified)
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在失去刺钉后，刺钉地雷会猛烈爆炸。
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—
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| Chinese (traditional)
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帶刺地雷在失去所有針刺後劇烈爆炸。
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Navigation
Spiked mines explode violently when they lose all their spikes.
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