Ok I just tried it for a while. God damn there's a lot of police enemies lmao.
The controls explanation image at the start of the game certainly helps but I think the game should also explain to the player that Gun 2 and 3 will automatically reload after a while when running out of bullets. I thought that I was supposed to look for more ammo on the ground.
I think the music was playing in a bit unstable manner, but I think it could be because I'm actually playing on a Linux machine using Proton on it to play Windows games. Steam Deck btw.
I'll try playing this game some more sometime later.