I never got this thing about the Amiga having 'too many shoot'em ups'... like, where? Because I haven't seen them. If you talk me about the Genesis... but the Amiga?
ANyway, teh Amiga got Lemmings, which could be THE most original game I ever saw
And japanese games are weird, you just have to get the hang of them
Beatmania is indeed boring, but it seems the dudes on the arcade that 'dance' with those games have real fun. Fact is lots of games appeal only to japanese public because other publics are not usd to them, or because other publics do not live teh same situation as japanese people. Hamster (and otehr pet) simulations are a hit in jap markets, but in otehr countries these games are a laugh.