Love the little death screen flash, The areas you drill through could use some more polish, I would smooth out the edges. It isn't obvious to me what each switch does, I would color code them.
For sure, I'm thinking of going ahead and re-working the existing sections to better represent what I was going for in a post-jam update. As well as extend the overall length.
Added a little door opening scene. Not adding color coded quite yet purely because the level design is going to change, but I have that noted for when the time comes. Thank you for the suggestion!