Complaints:
1) There's no way to speed up Bob. Having an option to speed up the level would've been much appreciated, and taken a lot of the waiting out of it.
2)The game took a while to register that I had completed a level.
3) I know you already talked about this, but yeah, the missing level manager definitely impacted the game significantly.
Compliments:
1) Cool and interesting puzzles. I like that you were able to add quite a few different mechanics, really kept the game interesting.
Ok I know there's only one compliment that I can think of, but in a puzzle game, level design and variety in mechanics are by far the most important things, and you nailed that, so good job!
(Also, did you by chance take inspiration from the Snail Bob game from forever ago?)