Can't believe I missed this one...spending too much time in the hardware sub-forum
Anyway, my favorite? Ranma 1/2 : Hard Battle (SFC Japanese version is best)
I just love choosing Genma & beating people to tears with the sign! My son loves being him too, so we have Genma vs. Genma battles
Ranma 1/2 series of games detail:
Oh, there is also a Ranma 1/2 RPG available on SNES/SFC. Don't pay a cent for it...CRAP!