Well that was nice little puzzle/platformer. It had very good learning curve, as challenges increased in difficult very gradually. Ending felt little disappointing; even silly little story or achievements would make finishing game feel more rewarding. When there is just "credits or play again" options it feels that I missed something(which is possible of course, but if this is case, it would also be nice to tell that clearly).
Puzzles were in general very nice, but sometimes when the problem part was too easy or repetitive i.e. theme of level 5 come up very many times, that is one where in upper map you can move right without putting yourself in danger, and in lower map you have to move only right(and very little to left to collect star). With this mechanic it should be very rare, to have maps which can be completed one by one(instead of thinking both maps like in lvl 37 for example).
When the problem was to look three different maps and think move in each of them, game was at its best(better level select could be nice, so I could tell you which level was my favorite, but oh well.)
As a platformer, I didn't like that there were some long jumps, which were made worse by having invisible threatened area(you die before you touch spikes, you finish map before you touch door). Some other maneuvers were little difficult to perform, but I think that is okay.
I liked though, amount of different elements and that there was no hidden information in maps(atleast I didn't find any)
Also, I you had the most important button for a game in which has sounds: mute. I like to choose my own music thank you(for the mute-button), but very good that you had it in you to make sounds for your game, good for you!
How to get 5 stars from me (if you were wondering):
*Story or achievements
*No invisible threaten areas
*Less repetitiveness
Pick two from the list.