Here is a space schmup I made with FlashPunk.
play at GameJolt: http://gamejolt.com/games/alien-legions/87624
game source code: http://john-gardner.net/AlienLegions/AlienLegions.zip
(music not included, obtain at http://computermouse.newgrounds.com/)
gameplay video: https://www.youtube.com/watch?v=RvQ8c87th64
Alien legions is a side scrolling space shoot’em up. Make your way through 10 waves filled with over 30 different types of enemies including 4 enormous bosses. Gather 20 different power-ups including 13 multi-tiered weapon and defense upgrades to turn your sluggish peashooter of a ship into a badass alien killing machine. Choose from 5 different difficulty settings from very easy to very hard. WARNING!!! Very hard is impossible … prove me wrong.