Nice short game, the enemies spawning and keeping the challenge was nice, it was incredibly hard at first, because I was holding click to attack, I figured out later that you had to spam click to attack. If you revisit it, I would consider adding auto-fire (holding the button down), as spam clicking could be very tiring and is hard to balance (different click speeds or even auto-click breaking it), the hitbox of the player was also quite big so it was hard to dodge, but it was fun.
My final score: 144