I agree the UI is pretty terrible, but the UI is the hardest part for me. My last game had basically none, so it is a little bit of an adjustment. That's what these jams are for anyways. The slippery-ness of the controls are terrible too, I agree, but the alternative was to just turn down the max speed (which I was doing gradually anyway) which would make the game much slower than it already is. I think I chose the lesser of the bad design decisions. Also I played your game and it was cool. It handled game balance better than mine (in terms of the guns, anyway. The enemies kind of start spawning at a ludicrous rate). I think post-jam I could make a version of it that has you pick one route to go down, limited to a specific build that can only get better in one way. Almost like the bioshock upgrades, but more linear. Glad you liked it!