Great job on completing your game! The artwork was nice and I always love space themes! Keep up the good work!
Recommendations: If this game is going to be controlled by the mouse, please also use the LMB key-bind for the action. The game's pacing doesn't feel great because of the overwhelming power of 1/3 phases. I would much prefer a similar balance between offense/defense for each mode. This reinforces bad behavior in the player; causing them to run while their guns are down and then to fight when their guns are active. So for 2/3rds of the game, you're left playing idly.