It is very abrupt. Enemies move fast and spawn right under my nose. Player moves fast to the point where it feels out of my control. If enemies would at least spawn outside of view, it would give me time to react and not accidentally walk into them. Try making the enemy movement slower at the beginning and make it grow progressively more difficult and it will definitely be fun. But the theme is matched pretty well.

this is insanely difficult to the point of being unfun imo

I like the premise is cool, a very high-stakes twist on target-perfect shooters, but the movement feels so fast and twitchy that you have no chance of sensibly navigating the arena. Also, the enemies are so damn tanky, and you resetting to the center instead of the opposite wall when going off the map felt like extra punishment

This is a game concept that's really intriuing but needs a lot of polish to properly work, or at least be accessible to less hardcore / masochistic audiences ^^