Crimson Prankster

The Crimson Prankster is a minor villain in the video game; Kingdom Hearts 358/2 Days. It's an Emblem Heartless that resides in Wonderland.

History
Roxas was assigned a mission to go to Wonderland  and exterminate a mysterious Heartless. Upon arrival, he drinks the medicine on the table of the Bizarre Room and as a result, shrinks down to the size of an ant. The Crimson Prankster then appears out of the shadows and attacks Roxas. It has power over fire and the ability to multiply itself. After a long battle, Roxas was able to defeat both the Crimson Prankster and its replica. The heart it held captive was released, and Roxas's mission was completed.