I actually went back and played it a bit more and made it a bit farther. The trick for me was playing in full screen. Everything being bigger made it easier and I was able to use the potions. I think if you mapped the button to get into boxes to more than one button maybe something like space bar or “j” “k” then it would feel more natural to use two hands while playing. I think part of my issue was I’m frantically running away from these guys shooting at me - and pressing shift with the same hand made it a bit more difficult. I would propose: WASD movement, J to get into boxes, K to use left-most potion…or something like that. The boosts being applied instantly is perfect. I can’t imagine also having to manage applying the boosts myself.