A solid start, for sure! There's a good variety of enemies on display, and the gray charger ones caught me off guard. I couldn't tell if the damage upgrade was doing anything, since most enemies died in one hit and the red ones seemed to just always take two hits no matter my damage. One thing I would have liked to see would be the player's current XP needed to level up. Other than that, it looks good! Great job on your first game jam submission.

You have a good foundation for a shooter game here. I enjoyed the upgrades system and multiple enemy types. However, I would recommend implementing more "feedback" into your game. For example, something to indicate your speed and damage rates to the player. I also didn't hear any audio on my end.

Keep up the good work though!