Great survivor overall i always enjoy classic type games like that lol
If i had some issue with it, it's just that it felt a bit too survivor classic if you know what i mean. And i feel like the loop term could have been more used, like with a looping map or looping the ennemies to them giving higher exp but it's the first enemy all that.
Also, i think it lack a bit of feedback, enemy takes damage, you take damage, you collect records all that, and a invicibility time every time you get a level to allow you to change your order more freely (or like a countdown, just to not throw the player in the pit lol)
It's not to throw you under the bus lol, its just advices! don't take it too badly thanks :')
All things considered you did a great job congrats