Great Battle Fullblast, a PSP brawler that brings together Gundam, Ultraman, and Kamen Rider characters has a few "familiar" bosses. Tyrant (not the one from Resident Evil), a space alien from the Ultraman universe, is one of the bosses you have to defeat.
Apollo Geist from Kamen Rider and Duel Gundam are two other bosses confirmed for the game.
On your team you have: Gundam, Freedom Gundam, Ultraman, Ultra Mebius, Kamen Rider #1, and Kamen Rider Decade. Players pick three before heading out and a couple assist characters. Gundam F91, Gundam Double X, Kamen Rider Ryuki, Kamen Rider Kabuto, Ultraman Gaia, and Ultraman Taro are here to help when Great Battle Fullblast comes out on March 1.