The game looks great, but has one frustrating issue. Enemies permanently spawning on top of yourself. That felt really annoying, i would have like either a spawn suppression or a clear anticipation animation when enemies appear. Same with the jumps of the little pc robots. I want to see when they are gonna jump that i can react to it and not die, because they randomly decided to jump and i had no way of knowing.
The trailing bullet is really cool, but might i suggest coloring your own and enemy bullets differently? That would lead to a lot more clarity.
Also a little issue with the controls. I generally don’t like to jump with the key up, it just feels awkward for me, I would prefer space for that and put the interaction button somewhere else.