During the game collect the following number of component parts to unlock the respective weapon upgrades:
How:
20 parts - Ray Gun and Spread Shot (1)
100 parts - Plasma Ball (1) and Spread Shot (2)
200 parts - Plasma Ball (2) and Plasma Artillery (1)
300 parts - Hyper Plasma Ball (1) and Plasma Artillery (2)
400 parts - Hyper Plasma Ball (2) and Shock Wave (1)
500 parts - Rocket Launcher (1) and Shock Wave (2)
700 parts - Rocket Launcher (2) and Heat Seeking Warheads
