There are teeny tiny cracks in between each tile on the Furnace Fun board. While sliding over these, it is possible to activate most moves including beak buster, beak barge, egg shooting, invincibility feathers, talon trot, back flip, and others! Talon trot might be useful in the TAS for backtracking after getting certain jokers on the board.
I thought this might lead to a Furnace Fun skip by triggering a death square on the save frame you activate gold feather invincibility, but this doesn't work (✿◡︵◡)
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