Added you to the list, but... :| what the forget.
Meat Circus is a difficulty spike so high it can knock planets out of orbit. The Steam version removes the ability to lose lives, but they kept the escort mission (which is absolutely evil), and the boss fights can be tough until you figure out how to crack them.
Well let me rephrase what I said, the level is a pretty huge difficulty spike when compared to the past levels and I was getting pretty frustrated in the escort mission with the second sword thrower, but then I figured out I could just use levitation off the side of platform and continue that way.
The final boss fight had a pretty simple pattern to it so it made it pretty easy to beat.
I do really like the tone of the level, the look, feel, and music really set it up well as a final level.