Good job on the random maps! You’ve captured the feel of a space-exploration roguelike well.
The gameplay was a little hard, although this is probably because my skill level in shmups is rather low.
In some of the reward screens I found only one option: some amount of money. Not sure if this is intended.
After selecting a stat reward, the screen should stay until the user presses a key. It changed too fast for me to read the stat description.
Some audio would definitely help.
Nice work overall!