The Bug Butcher -

: Features a 30-level campaign with boss fights and an "Endless Mode" (Merciless) for long-term replayability.

: Targets range from simple bouncing balls to "splitting" enemies and ceiling-crawling spiders that can snatch scientists if not neutralized quickly. The Bug Butcher

: Supports 2-player local cooperative play, which many users find to be the most enjoyable way to play. 4. Critical Consensus : Features a 30-level campaign with boss fights