Yar's Revenge achievements

Beat every level in Co-Op Mode

Beat a level without taking damage on Normal or Hard

Beat the game using only the pulse laser on Normal or Hard

Beat a level in Hardcore Mode without dying

Kill 20 or more enemies in one shot with the Zorlon Cannon

Complete all levels in Hardcore Mode

Beat the game without dying on Normal or Hard

Get your multiplier above 100 on Normal or Hard

Kill (1000) enemies with missiles

Kill (500) enemies with the railgun

Defeated Queen Raktamalina

Beat a boss using only the pulse laser on Normal or Hard