First off, great game idea! Made me laugh when I heard the voice in the sketching layer.
The switching mechanic has huge potential, but to use it mixed with jumping/movement mechanics, the movement mechanics themselves need to be more polished and refined. (Keeping in mind that it's a 48 hours jam and I'm sure you did all you could in the time frame).
Overall it truly had a ton of potential, but I got stuck on the part that I assume I needed to jump and press Shift on the level on the left to open the door on the right side. Pressing Shift just didn't do anything so I gave up on it eventually.
Other than that, great work, I was eager to continue and wished the controls and jumping mechanic were more tight.