Please note that I'm writing the following critique from a stand point of an adult who's quite used to puzzle platformers. I can see how this game would be appealing to a younger audience or those new to the genre.
Except for the length. This is a very short game and I was able to beat it in less than 2 hours.
This game feels heavily underdevelopped. The time travel and time stopping mechanics are interesting, but very little is actually done with them. There are only two time periods that you can jump between (not too bad, but I've seen better) and very rarely did the actual passing of time between them come to play. More often than not, you might as well have been jumping between parallel universes or something along those lines.
The time stopping is also rarely utilized and with a handful of exeptions, usually to make stationary things that could have been stationary to begin with. Altough, looking back, I think I also missed a few opportunities to use this ability to make the timed platforming easier. Overall, I found that I mostly forgot about this ability and when it came to the puzzles, it was one of the last things I tried applying, unless the need was obvious.
Overall, the concepts in this game had potential. But I don't feel like they were fully realized. I was missing more inteplay between different mechanics and elements in the game. More use of the time travel aspect of this game about time travel. More mixing different mechanics in with the platforming.