I expected to see something like that for this topic :).
It's cool to see 3D! It's also cool to have a fairly large and detailed tutorial, as well as a large number of levels - did you think them through yourself, or maybe somehow generated programmatically?
Hints are a cool feature, although it's more fun to play without them :).
It's also nice to see the progress in the menu and be able to choose any level.
After the last level, the "next" button doesn't work, maybe some kind of ending was expected?
The music is calm, suitable!
It was fun, congratulations!