In a nutshell, it feels like a red ball clone with double jump mechanics. Gets obnoxius after less than one minute. You surely can make better projects off Red Ball's "formula".
-edit in response to the author-
Red Ball is an old platformer game very similar to yours, it's not hard to find it online. I see you did this all by yourself, and that's commendable, but "being based on one theme" doesn't give your game a shield against obnoxiousness, as there are alot of "one themed" games out there that are not boring and also have only one type of game mechanic like the Quickdraw series by 53xy83457 or Super Grower by MrNannings,( i recommend you check those two, if you wish). sorry, but that's not an excuse. Keep doing your projects, im not a hater, i'm just someone that played your game and gave it's opinion, nothing more. Sure, my attention span is different than yours and everybody else, but what im saying is that if you want to do a project, do your best. Push your boundries, one project at a time. You will be slowly climbing the stairs. I wish you good luck in your future projects.