for the daily achievement; the knife can be found in stage 2, in the begining. move forward until you reach an elevator. use it to get up and walk left. a scene will be played and you need to shoot down the skeleton and the knife will drop. pick it up with "E" and there you have it. kill 20 enemies and you're done! :)
Funny game, hahaha, got to lluv the intense farming and a system where the most retarded ones who waste their money on a child's game, have the best decks, and so on *cry cry* you know.
 "Mushroom Madness 3"){kind=icon}
 "Zombotron 2"){kind=icon}
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