Topis are white yeti-looking characters that are about the size of Jigglypuff.
Topis appear in Stage 10 of Adventure Mode. They also can come from containers in other modes.
Topis walk back and forth on the arena. Anyone who is in its path will take damage. They can be picked up by using the "Z" button and can be thrown at other characters to cause damage.
You will get awarded 200 points for every Topi you kill.