Unlock ALL Stages
If you want to choose what stage of the game you want to begin then at the 'Menu' screen press Up, Left, Up, Left, Down, Right, Start.


Unlock Stewart Griffin's Weapon Upgrades
When you collect a certain amount of component parts Stewart Gilligan Griffin will upgrade his weapon.

Collect 20 Parts:
Ray Gun and Spread Shot (1)

Collect 100 Parts:
Plasma Ball (1) and Spread Shot (2)

Collect 200 Parts:
Plasma Ball (2) and Plasma Artillery (1)

Collect 300 Parts:
Hyper Plasma Ball (1) and Plasma Artillery (2)

Collect 400 Parts:
Hyper Plasma Ball (2) and Shock Wave (1)

Collect 500 Parts:
Rocket Launcher (1) and Shock Wave (2)

Collect 700 Parts:
Rocket Launcher (2) and Heat Seeking Warheads