Eh, this is the most basic-ass platformer one can make. Not sure why it even has a pricetag on. Even visually, it's pretty boring, with that default 2D light engine and literally no other graphics beyond that.
Moreover, the platforming mechanics are executed extremely poorly - the lack of coyote time results in a ton of missed jumps, and unweighted jump makes moving around pretty unsatisfying.
Besides, the game is downright boring with literally nothing to do but jumping up, and pretty rough punishment in case of mistakes.
For a baby's first platformer it's alright, bu then again, for some reason it's advertised on other sites and has a pricetag on it for some reason. Don't be greedy.