NEC Interchannel Games
It'll definitely be in importers' bargain bins before too long.
Seventh Cross Evolution
While it's all in import-friendly English, the game's evolution concept is extremely abstract and all too central to the game to make it truly enjoyable, regardless of the language.
Industrial Spy: Operation Espionage
Unless you're extremely into the spy game genre, you should avoid this game at all costs.
After Burner II
Though After Burner II is translated fairly well, it suffers most at the hands of the control scheme, which loses a lot of value on the scaled-down mobile system.
Altered Beast is a classic arcade beat-'em-up featuring that ability to morph into animals.