Cute game and good take on the theme.
The voice acting and background music gave the game a very good and light-hearted mood.
Movement was a little slippery, especially when pushing the boxes. Frequently the boxes would slide all the way to a door and then there was no way to get on the other side of them to push them away from the wall (this ended multiple runs).
The initial 'The End' should maybe say 'The End...?' or something like that. It would have been pretty easy to stop the game right there. You do have a number of 'endings' and then the final roll credits.
You had two types of buttons, one that needed the box/player near it to hold active, and a switch that only needed to be touched once. For clarity, these could have been differentiated in artwork to show they had different behaviors.
Looks like you had a concept ready for breaking the 4th wall as well.
Very nice submission!