Nicely done and amazingly polished in terms of graphics! At first I thought it was simply a putt putt golf game but with a space theme. However, having to make sure you don't crash into walls too hard gives it a whole new dimension! And pausing the game while aiming was nicely done, even the explosions froze :D
The second level was too steep of a learning curve in my opinion, but eventually I managed!
I noticed one small glitch which you might want to fix at some point to make the game feel even more polished. After crashing (and dying) the enemy can hit my dead ships hit box and dies as well. This looked a bit strange :)
Anyway, great game, really something to be proud about ^^!