Gekisha Boy (Photo Boy) by IREM for the PC Engine is one of the most if not THE most original game on the system and one of my personal favorites. The amount of creativity and variety level design REALLY puts this one up there for me and I highly reccomend checking it out, along with its PS2 sequel, which was also a launch title.
Neither game made it over here, but they're both super easy to pick up and play. The litte text that there is does have an english translation for the first and FAQs are available for the sequel. The only thing we got even slightly similar was "Nicktoons: Freeze Frame Frenzy" for the GameBoy Advance, which thoroughly maimed everything that made Gekibo good. Howeve, I grew up with the game and owe my discovery of Gekibo to it, so I suppose I don't hate the game completely.