Controls:

ABXY - Shoot
Dpad - Move
L - Change weapon
R - Charge and release EX
Start - Pause
Select - Toggle shadows

Latest Updates:

Build 07
- Fixed key binding bug thing (for real this time)

Build 06
- Made the game easier
- Increased player health
- Increased effectiveness of healing items
- Increased drop rates of healing items
- Improved overall performance
- Fixed typo in stage 11

Build 05
- Sound effects are now properly synchronized with actions
- Added a few more sound effects
- Stage 2 now has a hint to help new players

Build 04
Another minor one.
- Some optimisations
- Level select list now expands to fit all items
- New preview images

Build 03
Minor update.
- Dynamic shadows!
- Some graphical optimisations

Build 02
This version is the full game, featuring:
- 20 stages
- a ridiculous storyline
- autosave
- decreased difficulty for the first few stages
- credits on the title screen
- frustration (it's hard)

thread: http://boards.openpandora.org/topic/15222-giant-flying-mech-that-shoots-evil-robots-for-great-justice/