Flopon the Space Mutant was developed first, and only in Japan. A demo was then released in Japan for Flopon the Space Mutant 2, which was also included on the Short Warp compilation. Finally, Flopon World was released, which included 4 mini-games, one of which was a finished version of game demoed as "Flopon the Space Mutant 2". (The others were "Version 2/3", a shooter/RPG, and some kind of training mode). This game was released in the US as Trip'd... Right??

Some questions are still bugging me, however:
1) Trip'd is supposedly the US version of Flopon World (FZ-SJ2354), but it has the same serial number as Flopon the Space Mutant (FZ-SJ2351).
2) Many sites state that Flopon World contains 4 mini-games or game modes, are all of these games/modes also in Trip'd?
Thanks in advance for your help!!