Mutant Mushroom - Special Edition Mutant Mushroom is a retro side-scroller game with modern graphics and gameplay. Blast your way through dangerous locations, while collecting cool powerups, weapons and other items. Cost: $12 Buy full version       Trial version       Publisher: gaimplay     Descriptions Mutant Mushroom - Special Edition: Mutant Mushroom is a retro side-scroller game with modern graphics and gameplay. Blast your way through dangerous locations, while collecting cool powerups, weapons and other items.