Unlock Challenge Mode:
Beat the game once to open up Challenge mode, which allows you to select any level.
Upgrade Suit for Kelly:
Make it to the 8th level and obtain an upgrade suit for Kelly.
Third Kelly Suit:
Acquire every Halley Core.
Thanks to Revolution reader Cowboy Bebop Crew!
Gunvalkyrie Xbox Cheats
The stars just haven't aligned.
Get back into the battle.
Frees up some valuable inventory space.