When there weren't lava tiles as in the most recent version, I wanted to do a exotic Wily Level, where you had to infiltrate the forefront of his geothermal base. Also due how refrigerators work, by using heat and water, I added in a cold section.

However there is a recent bug, which makes the level unwinnable in newer versions.
When a boss spawns and there is a pit, the pit will kill you, instead to transition to the next room.

I will make a thrid versiom when the muse hits me.