We have 2 cheats and tips on Xbox. If you have any cheats or tips for Gunvalkyrie please send them in here. You can also ask your question on our Gunvalkyrie Questions & Answers page.
Finish the game once to access any level.
Get Challenge Mode:
Complete the game once to open up Challenge mode. This mode allows you to select any level.
Upgrade Suit for Kelly:
Make it to the 8th level and obtain an upgrade suit for Kelly.
Another Kelly Suit:
Acquire every Halley Core.