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Wooden rollers, also referred to as pegs, are objects that appear only in the sub-area during the mission Climb Up the Cascading Magma in the Luncheon Kingdom in Super Mario Odyssey. They rise from the top of the ramped waterfall of lava in groups of three and start to roll down. They appear in the following order:
Wooden rollers then sink into the lava after reaching the end of the ramp.