This was so fun! 90% of the time I'm really bad at it and get 1 or 2 kills before I die. Occasionally I do okay and I'm even able to use the RMB attack. My high score is only 14 (not as impressive as that 88!), but the attacks felt really satisfying.
I have some art suggestions for either your next project or if you update this one (I did not deduct rating points for these): the rain feels a bit jarring. Maybe it's an illusion, but it feels like it slows down when you move down vs standing still or move up. Also, since the rooftop is so big, adding some sort of texture (maybe dithering like you have on the bricks on the itch banner?) or landmarks (like storm drains) will help ground the player a bit when they're in the middle of the roof and they're just surrounded by concrete. And lastly, it would be great if the player was a different color from the enemies. Even if it's just that the enemies are being desautrated programatically by 10%.
Anyway, I hope my suggestions don't come off as harsh. I know time contraints and all that jazz are real, especially when you're a team of one. I really enjoyed this game and I'm glad I had time to squeeze it in before voting ended. Great job!