Astro Boy: Omega Factor

About the game
Astro Boy: Omega Factor is an Astro Boy game for the Gameboy Advanced, it was developed by Treasure and Hitmaker, and was released on the 18th of December, 2003. It stars Astro Boy in a plot lifted from several Astro Boy iterations. The game is a side-scrolling platformer beat-em-up, with Astro Boy fighting an onslaught of enemies using the various weapons at his disposal.

The Wonder 3's appearance
The Wonder 3 appear as a boss in the game that is required to fight to move on. They fight in their vehicle and are actually taken down rather easily by Astro Boy.

Trivia

 * This might be one of the first times The Wonder 3 are seen in color.