Arrows/wasd to move, 1-9 to select weapon. mouse to aim, click to fire, and when not firing you can melee, which is space. different weapons also have different damages/ attack speeds and ranges on melee. i am lazy so if you want to know the exact stats, look inside the "bullets" sprite and the "player" sprite Different weapons have different fire rates as well as different damage/hits, and a different chance of a critical hit. a critical hit basically just deal more damage.
all 100% original melee tips :starter weapon has highest melee damage(45) valkyrie has longest melee range (125) independence has lowest melee kill time(1.27 sec)