I quite like this. I got to the end with 6/9 collectibles and had a bunch of fun with it. I thought it was a moderately difficult game, but once I got the hang of the controls, it wasn't too bad. I would appreciate some sort of checkpoint system though.
A few other notes:
The hit collision for the enemies feels unfairly large.
There is an exploit where you can place a sticky block in midair and then jump off of it. Not sure if it's intentional or not, but it's fun to pull off.
And another exploit where you can repeatedly jump off static blocks. Not sure if it's intentional or not, but it trivializes the solution to some of the levels.
