wasd to move point the shotgun down and shoot at the same time as jumping to shotgun jump e to melee/parry r to reset space to disable mobile controls shoot and move toggles whether or not you will shoot while pressing mobile movement keys, having it on is good for multiple shotgun jumps and having it off is good for stages with a glass floor if you find a boss, it will typically have an indicator to show that it's doing a non-parriable attack, try to identify what it is not finished as of now, and probably gonna get no to very few updates
if you're on pc look at the tab's name