Wario Land 4
Game Boy Advance Cameos

GameCube

During the battle with Spoiled Rotten, in the background you can see a TV set with two GameCubes on top. One of facing forward and one is showing the top.

In Japan, this game was released before the launch of the GameCube, making this a pre-release cameo.

Submitted by Grandy02, screenshot by The Qu

Dr. Arewo Shitain

The old, bearded professor who appears in the bonus rooms and the Wario Hop minigame is Dr. Arewo Shitain from For the Frog the Bell Tolls.

He was the head scientist who worked in the Nantendo building. In Wario Land 4 you can throw him around, and he can also sometimes be seen playing a Game Boy Advance.

The same character designer, Tomoyoshi Yamane, worked on both games.

Submitted by Grandy02, The Qu, screenshot by The Qu

Game Boy Advance

During the ending, one of the treasures that pops out of the bag is a golden Game Boy Advance.

The respective background art also shows Wario with a lot Game Boy Advances.

Submitted by Grandy02