Good work on submitting! I thought the characters were cute and was hoping to get further up the castle. :)
As others have pointed out, the slippery controls are frustrating (especially when it looks like it's human feet walking on a normal surface -- i.e. if it were icy or the player was wearing skates it would make more sense). And the hitboxes for the holes seem to collide with the players head(?) as well as their feet.
Nice job, and keep at it! 👍