Upgrade Complete

In this game on notdoppler.com, you could/must upgrade everything to beat all the ships/aliens to get to the 20th level. You can use three different weapons, and the weapons are, a gun(which is basic), lightning guns(which drain the enemy's health[and I would use a lot]), and a missle launcher(which is a homing missle that locks onto the enemy's ships). Also, even though these next few items are not weapons, they help you ship throughout all the levels. They are a magnet(which pulls the money closer to your ship to catch), and the other one is a speed panel(which speeds up you ship's agility). Once you reach level twenty, you will be prompted to upgrade to an awesome game over screen, restart, or go back to the shop screen. CLICK HERE for the game.