DOA3 is pretty cool and easy to get into; my wife and her sisters are pretty fiendish at it - and all they do is button bash.
There's us lads trying to play properly, and do the real moves - and we get whupped regularly!
Kung Fu Chaos is another very funny multiplayer beat 'em up - and there's not too many moves or buttons to worry about. The only downside is that there's sometimes loads happening on screen, and it can all get a bit confusing!
got doa ultimate off flea bay last night....bit of a result i think, £6.80 plus £2 p&p.brand new and factory sealed apparantly..lost out on a previous bid when one went for 15 odd quid......so i look forward to giving the missus a good thrashing