Tekkyu Fight!: The Great Battle Gaiden (鉄球ファイト！ザ・グレイトバトル外伝. Iron Ball Fight!: The Great Battle Spinoff) is a Game Boy platforming game that is a part of the Compati Hero series, which features a crossover between Ultraman, Kamen Rider, and Gundam. It features chibi versions of characters from all three franchises, mainly the iconic ones, as they go off on an adventure to defeat villains that are also from those franchises with a variety of wacky weapons, mainly a 30 ton iron ball.

enderpal7 chooses to play the entire game as Ultraman and uses a combination of iron balls, balloons, and damage taking to beat the game in record time.