Eject Reject

Eject Reject is a downloadable microgame in WarioWare: D.I.Y. and WarioWare: D.I.Y. Showcase. It was released on June 24, 2009 in Japan; May 24, 2010 in North America; and June 25, 2010 in Europe. It later returns in WarioWare Gold as one of Wario Deluxe's microgames.

Gameplay
The player is shown a sign with a cake on it, a conveyor belt, and a boxing glove. The player must punch all of the cakes that are not the same as the cake on the sign. There are a few different kinds of cakes, but at least one is always the same as the cake on the sign. If the player punches the wrong cakes and leaves the correct cakes, the game is won. If the player punches a right cake or leaves a wrong cake, the game is lost.

WarioWare Gold
The game lasts twice as long. Here, Wario has to remove any objects that are not cakes, which can be either a white snake or a pile of poop.
 * 1st level difficulty: There are two or three non-cake objects.
 * 2nd level difficulty: There are four or five non-cake objects.
 * 3rd level difficulty: There are six or seven non-cake objects.