The AI images that tell the story in the beginning are very good. If you expand the game, I think you should lean into it.
Regarding the current state: I think the very early game is quite boring. You basically have to click "Respawn Target" far too many times before the game starts having a bit of complexity. I think some Auto Respawn Target (which respawns after 10 seconds of inactivity) would help. Also some randomly appearing items that boost fire speed and damage for a few seconds. This way the player can either idle (auto respawn) or has more stuff to do in active play (random temporary boosts).