Hi Nishurato!
So... I'm not really a fan of rage platformers. I failed to jump more than 4 or 5 platforms in a row and to be fair the whole experience was a bit more frustrating than fun. Some of them are waaay too hard, close to unfair. I don't have enough control mid-air to be able to decide where to land, so just a few milliseconds off and I knew I've already lost and there was nothing I could do about it, and I don't even have enough tools to calculate with precision where to land.
Also presentation is simple, there's a difference between minimalistic and unpolished, I know it doesn't seem important, but it goes a long way to play as a bunny, or as a kangaroo or whatever you want to imagine than if I play as a rectangle.
But the important thing is that you pushed your limits and made a game and presented it, that's a lot more than most people do, so good job on that!
I don't give bad ratings because maybe I'm not the target audience of rage platformers, so I prefer not to rate it and give you my honest feedback hoping to help you improve your game. Hope it helps, good luck!