Nice little game. I wish there were a survival mode after beating the game, but probably adding more and more enemies to the screen would just drop the framerate to nothing. Still, I would like to see how far I could go with all the upgrades.
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1. Make enemy missles heat-seeking so it's more challenging. 2. Allow player to go up/down and not just left/right. 3. Add terrain that we have to avoid. 4. Add buildings with defenses.
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