Can some one tell me how to use Co-op? sonicdsfan1 - 8 years ago
Top Voted Answer
First, co-op can only be played in Challenge Mode. You unlock this mode by beating the Citadel of Spiders--the very first cave in the Perplexing Pool.
The game will ask you if you'd like one or two players when you pick a stage. jgamekeeper - 8 years ago
Co-op is for vs mode. Jeten98 - 8 years ago