Glad you figured out how to get it published as a web build, will hopefully allow for more people to give it a try.
I liked the ideas behind the mechanics but found the controls a little awkward. The dissolving platforms are a nice mechanic but could use better visual indication before you jump on them.
There were a few times when I got the characters soft locked - an example is pushing the first crate partially down the stairs and then going over the top of the create and falling down you then can't get back up the stairs.
I like the little initial interaction with the cat, would have been interesting to see how that developed.