There are 12 hidden stages in the game. 8 of them appear on the world map automatically, but needs to be unlocked by collecting all red diamonds in a given world. Remaining 4 appear after completing certain objectives.
Unlockable How to Unlock 10th stage in each world Collect all red diamonds Stage 9-1 Beat the game without seeing "Game Over" screen. Stage 9-2 Beat stage 9-1. Stage X-1 In stage 4-3 use a warp block located directly above your starting position. Use bubble gum to get there. Stage X-2 In stage 6-7 after reaching the first check-point flower continue to the right until you reach a bazooka bee. Bounce of its back to find a warp block.
Contributed By: ESidu.
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