-Movement needs to be faster.
-I don't like the way movement input behaves when it switches cameras, especially when playing on a keyboard. It should immediately override the old directions when you press a different direction or move the stick a certain amount.
-Sound effects when interacting with things are delayed.
-You don't "drink" pills.
-The construction worker just vanishes when you go through the gate.
-I don't have anything good at hand to test it, but the player's pose when holding the bat seems strange.
-Attack animations feel weightless (both of them).
-Unrealistic amounts of blood when hitting enemies with a blunt weapon.
-You don't need to despawn blood decals or corpses. Modern computers can handle it.
-Small objects like the key and letter shouldn't have collision.
-Player can go outside camera view in some places. Put invisible walls there.