This was a part of school project I made with my friend (who isn't on newgrounds) a few years back, when we were 3rd year CS student. It contains a lot of sprites and sounds from other games, see in the credit.
The objective is protect the Nyan Cat from hails of asteroids.
Use mouse to move the ship around. The ship itself is invincible, so don't worry.
Click to shoot.
Space to bomb the whole screen.