What kind of games are your thing? If you're a 360 owner then Mushihimesama Futari is a shmup that I hear nothing but good things about (and it's region free!). The DS has loads of quirky titles that may or may not be any good, English of the Dead and the new Kunio-Kun look fun but I can't vouch for their quality. Oh, and Jump Super/Ultra Stars.
As for retro stuff, maybe Segagaga? It's looks like it isn't very import friendly but I think there are guides online.
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