Cameo Appearance: Segagaga (Dreamcast) In this obscure (and very cool) Japanese RPG, you meet several Sega characters, and even get to hang out with Alex Kidd for a while!  Anyway, the last part of the game is a horizontal shooter sequence, where you have to fight all of Sega's previous consoles.  When you fight the Mark III, it attacks by sending out the Fantasy Zone bosses (along with Papi, Pupi, and Poh from Aztec Adventure/Nazca '88). Then after beating the game, all the sega characters come to see you while flying in giant Opa-Opa ships.