Amazing work. Keep it up

I can't remember seeing this mechanic of (Amount of coins=Jump Power) and I quite like it, good job on the level design, it didn't felt like I had to start from the beginning each time I lost power, good job on the sound track too, its non intrusive to the gameplay and that's important when you have to concentrate on the jump. I found myself fighting with the camera from time to time because of its fixed position, still I finished the game. Good Job!!

I was literaly thinking that this game is Impossible untill i found out that collecting Coins turns up the Jump height

It's an interesting idea, but it lacks some sound effects that you would like to see in a platformer like this, a menu, and it seems a bit unpolished, but it does have some certain features that were quite impressive with limited time.