8-1
8-1 solution
8-2
8-3
8-3 solution
8-4
I thought this one was clever. I was stuck on it a few minutes, thinking, how the heck can you outrun that skull? And then I realized, you can't--just don't pick up the rightmost heart last.
8-4 solution
8-5
This one has a nice progression with those boxes. It starts with a really easy box, but from there, untangling everything is a hassle. The second one is not too bad, the third one is a little worse, but by the time you get to the last two, you've pretty much got it all sorted out. I also like the moving pink enemies in general for adding a timing challenge--this game loves to use those medusas, and it gets old after a while.