Kiki

Kikis are robotic Bomb-throwing monkeys built by Dr. Eggman that were first introduced in Sonic Adventure. Kikis have made several crossover appearances with the Mario franchise in the Mario & Sonic series, where they commonly appear as enemies in various Dream Events and minigames.

Trivia

 * They might or might not be named after Kiki a monkey character who is a reoccurring companion to Link in The Legend Of Zelda

Mario & Sonic at the Olympic Games
Kikis first appear in the Nintendo DS version of Mario & Sonic at the Olympic Games as targets in the first stage Dream Shooting, where they can be defeated by a single shot to earn three points and jump around. Kikis also appear as one of the enemies to be sorted in Conveyor Belt.

Mario & Sonic at the Olympic Winter Games
In the Wii version of Mario & Sonic at the Olympic Winter Games, Kikis appear as enemies in the Individual and Team versions of Dream Alpine, where they knock over and slow down any players that hit them, as well as throwing bombs.

In the Nintendo DS version, Kikis appear as enemies that are defeated during the spin segments of the Mario & Sonic Download Medley, Sonic Medley and Mario & Sonic Medley in Ultimate Figure Skating. A Kiki also appears in Adventure Tours mode destroying a Chao's garden in Icepeak. Daisy must defeat the Kiki in the Chase off Kiki! minigame, after which it opens a gate and allows the player to progress.

Mario & Sonic at the London 2012 Olympic Games
Kikis also appear as enemies in several London Party minigames in the Wii version of Mario & Sonic at the London Olympic Games, such as Vacant Lot Kiki Hunt!, as well as appearing on some of the stickers earned for winning them.