Yes, and I took my sweet time with it. The hardest one for me was the first level, mainly because I had to get used to him being more like a flighty moth and less like Meat Boy under the worst possible conditions.
The second level wasn't that bad, it was all just setup and timing. I didn't look really as much as felt when to rush back and forth. I actually had more trouble trying to figure out the middle jump than the third elevator that everyone screams about.
The third level was annoying. I'm on a keyboard and I swear that my space bar leans to the left from Super Meat Boy. I'm glad it's over with. The Kid is my second favorite unlock after Jill.