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to keep track of what you have here — unlocked entries stay ticked off, and you can filter down to what is left.
Data from Steam — Steam Web API Terms of Use. Last updated .
| Achievement | How to unlock | Unlocked by | Rarity |
|---|---|---|---|
| Finish any level without using health packs | 50.5% | Common | |
| Kill Bull during charge | 51.6% | Common | |
| Burn 10 zombies with one gasoline puddle | 57.6% | Common | |
| Kill 10 zombies with balloon explosions | 59.6% | Common | |
| Kill Lurker midair |
| Common |
| Finish any level with full team | 82.1% | Common |