Checklists
Donut Plains 1
Donut Plains 1 is the first level players will encounter in the Donut Plains. The secret exit here can be found towards the end of the level.
After jumping over a large green pipe players will see either outlines of green squares in a vertical line up from the ground or a vertical line of green blocks marked with exclamation points. If no blocks are present, players can aquire a cape by grabbing the feather that floats after jumping onto the super koopa enemies that fly around with flashing capes. If the green blocks are present then there is no way around and the secret exit will be inevitably found by sprinting at the pink wedge before the blocks.
Continuing to sprint/flying upward of these squares will lead the player to the key. Picking up the key and walking to the nearby keyhole will unlock the secet exit for this level.