Got 33! Really clever and well designed for 6.5 hours! Reminds me of Press Ctrl.
You remain alone aboard the bridge of your starship. But the aliens don't care - they will keep sending their vessels and boarding your ship.
Position your ship carefully and shoot down enemy vessels. If any of the aliens make it aboard your ship - punch them, they are frail.
Designed in around 2 hours, developed and drawn in 3.5, and 1 more hour was spent for adding a nice title and some instructions.
Made for Trijam 165.