Why does the 360 get all the cool Japanese games?

[Barozi]

Seems like you're out of luck.

NTSC and NTSC-J 360s have quite a few retail SHMUPs. Maybe you can find a few on XBLA ?

Like Rez HD, Ikaruga, Shoot 1UP

Guwange will release soon too.

 

EDIT: Just saw that Raiden Fighters Ace will probably arrive in late November for PAL consoles