So it looks like it’s more focused on frenzy shooting than balancing or forcing the player to die and retry. The recovery rate is quite high and obviously infinite lives make it doable in one rush, although you can challenge yourself to rush without losing a life. But considering your lack of time, it was a smart way to ensure the game is finishable.
I was pretty impressed by the graphics, not just the sprites themselves but all the shaders around to give it a scifi look.
The first boss was the hardest as there is a gimmick to understand and you must stop spamming shots continuously. It disturbed me that you can only move horizontally and only on that boss, it forced me to wait for the right moment to shoot and makes it harder to experiment shooting at different locations. But the gimmick itself is clever.
After that it’s mostly about barriers. The first one rotates a bit too fast to rotate around, the further ones are okay as you always find openings to shoot through - and the barriers break if you shoot them too much anyway.
I think barriers damage you too much, at the end I was only focused on dodging them and didn’t care about hitting asteroids or projectiles are they would relatively damage you much less, and you can recover that.
UI issues
I pressed Escape once to open pause menu, then Escape again to close pause menu and it closed the game!