I like the idea of separating the different scaling abilities between height, width, and mass. It opens up some opportunities for cool puzzles, like the one where you need to shrink the block's width, tip it over, and then scale it back up and let it raise you towards the goal (level 4, I think). How do you beat the level where you need to collect the three keys, though?
Viewing post in TheScalarProject jam comments
You get the blue key, which lets you press 2 to scale Y. Then use that to get the red (X scale) key on the left, then use both to get the green key in the pit on the right, which lets you change the mass of the block blocking the exit.
Which part specifically did you get stuck on, so I can avoid a similar situation in any future games.