Top Kirby wears a simple yellow and white cap with a picture of a top. He can send out dozens of spinning tops with star designs on them, which can slice up anything they touch and then explode. It is very similar to the Yo-yo ability.
Kirby: Right Back at Ya!
Along with Water, Iron and Baton, Top appeared in the episode Air-Ride-in-Style - Part II of the anime, and was created by fans. There was a contest in Japan to submit copy ability ideas, and this copy ability was the idea of one of the winners.
In the transformation sequence, a top hits Kirby a few times. A cap then appears on Kirby's head. He then catches the top and wields it as a weapon.