I found out how to beat this game with only one ice cream. You start off normally and finish the tutorial, but then you only get the "You Can Jump" Ice Cream (I tried this glitch without getting that ice cream and it doesn't work) you go to make a new level in the level creator building, then you can just automatically create the level and once you hit "start from spawn" or whatever, what you're going to want to do is click the options button twice very quick, hit back to hub and confirm, if you did it right, you shouldn't be able to move, you can ground pound to be able to move. For some reason, doing all of this makes you able to run through walls, so you can head up to the sun boss fight with only one ice cream. This could be a new any% category!
Do you have any video of this? I dont think it should be added until its actually done.