This entry had some great ideas on it, and while short, it was on the fun side of the spectrum. While the level with the red and yellow blocks was specially difficult, I overall had a great time playing this game. I've seen many entries where one player controls many characters at a time, but it has the unique spin that all but one are enemies or obstacles, which I found exciting.
Like I said, it had a lot of good going for it, and with more development time, I would believe that you could come up with a lot of creative elements from the ideas you've put together here. There can always be more, of course. But given the development time, I believe this did well overall. Well done! 😊