Unlockable How to Unlock Yar's Revenge T-Shirt Buy the game.
Achievement Description Value Bee Beat the game using only the pulse laser on Normal or Hard 25 Beetle Beat a boss using only the pulse laser on Normal or Hard 15 Boom! Kill 20 or more enemies in one shot with the Zorlon Cannon 10 Cloned Beat every level in Co-Op Mode 10 Cockroach Beat the game without dying on Normal or Hard 25 Gnat Beat a level without taking damage on Normal or Hard 10 Hardcore Complete all levels in Hardcore Mode 30 Mosquito Kill (1000) enemies with missiles 10 Multiple-Madness Get your multiplier above 100 on Normal or Hard 20 Reaper Beat a level in Hardcore Mode without dying 15 Wasp Kill (500) enemies with the railgun 10 Yars' Revenge Defeated Queen Raktamalina 20
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