Thanks for responding!
To clarify, by "screen effects" I meant the CRT-esque screen bending effect (looking at corners hurts). Having another option to disable some visual effects (like the stuff that splatters out from dead enemies) would also be nice though.
(P.S. I forgot to add this in my last post but the ability to rebind controls to different keys would be neat.)
(P.P.S: The player should be able to equip Legs equipment to affect their movement speed & dash distance.)
(P.P.P.S: Melee weapons like a sword or pike would be a neat addition.)