Hey there ! I really liked to tryhard your game haha ! Did you really make everything (including music) ? If it is, that sounds pretty awesome !
Really good mood, I like that kind of game (like The end is Nigh). As others, I think your game is well executed, nice music and art ! And I loved the good frustration and the improvement curve. Otherwise, I think that deadly fire start too fast, giving player to see the beginning of the level and waiting his input before launch the deadly fire may be less frustrating (bad frustration here). The movement is tricky, first of all I thought that was too slippery but after few tries I took it ! So GG for betting on this challenging movement feel, it finally works well ! When I tried again and again, I saw that when you die, the removing stems follows the initial cooldown, instead of resetting, that may be a problem in a specific situation.
Have a nice dev !