Loved the game! Loved the visuals, they look really clean, the movement felt good as well but I could just dodge the entire time without really fighting (confession, have this problem in my game as well), so maybe add some value for kills somehow?
I usally ignore bugs as it was created over only a week and it pretty expected to encounter some but saw in comments you are plan to work more on the game (and I find it amazing) so I played a little longer and hope it will help you as I feel like playtesting is a crucial thing in game development.
1. No map limit - I could just go to a random direction without stopping and just win the game
2. Enemies keep spawning while on pause - might be intentional but if so they have no movement and kinda feel like a landmine (which also might be intentional)
3. When you restart it shots one bullet to the position you clicked the restart button
Also encountered the other in the message but no point to repeat it, I really hope you will continue to work on this game and be able to publish it :)