Generic enemies' money drops are auto-collected. You only have to manually collect rare drops like healing fruit, specifically to incentivize moving around the map. None of the weapons interfere with enemy movement, as that makes using the blade harder. The blade is not erratic, it's in fact extremely consistent. It always pushes enemies in the same direction is it facing. The player gets knocked-back always in the opposite direction. The blade does not rotate instantly -- it takes time and is not tied 1:1 to movement direction. You *think* you want it to rotate instantly, but you don't (I tried it). That would make the game unplayable without an analog stick.