Where's my cookie? :)
Nice job. Fluid movement, good graphics. Sound does the job well.
Only thing I am missing here is challenge.
- You instruct the player to HOLD the shoot button. But that way you cannot even be hit by the enemy.
- The upgrade system is also pretty lopsided. You upgrade damage and firerate and then you destroy the waves. No need to touch health because you simply do not take damage
- Some variety. We have a few levels here, at least arrange those badboys differently :)
I enjoyed your game and I'm looking forward to changes if you decide to implement some.