"Pressure Cooker - VVVVVV" is a high quality rip of "Pressure Cooker" from VVVVVV.
Joke[]
At 0:19, the melody changes to "Chocolate Rain" by Tay Zonday.
This might be a reference to I wanna be the Boshy. In that game, World 4 is based on VVVVVV, and in that world you can find a hidden CD with the tune of "Chocolate Rain".