Thank you for your review, upgrades don't make to much sense with the elf because she is still a WIP, (that's why I put a warning when you chose her), but she will have her own powerups and stuff once she finished.
The perspective is weird, to low/isometric? Not sure. But gauging collision was impossible.
I'm aiming for a isometric perspective while I make the game full 2D, I my be not perfect now, but as the development goes on I will address that issue with new textures, decorations and other stuff.
glow effects (especially lightning) are far too bright
There's an option in the pause menu which allow you to remove glow and screenshake effects, in future I will expand those options so the player can have visual experience more accordingly to what the want or not.
This is just an alpha 0.0.2, version 0.0.3 will have many improvements that's for sure. About holding fire, I will add an auto aim feature in the future trough a hotkey, similar to Holocure and 20 minutes until dawn.