It's clearly a very good simple platform game, what else can be said about it ?
-The audio is really cool, the rythm is what i love the game for.

It doesn't take you very long to complete it (free part is less tahn a single hour i think), you can play i little bit longer if you try to get the achievements. I brought the DLC to support the devs of the game because i found the audio theme so enjoyable that paying an extra 2bucks isn't that much and it took me 6 hours to complete the game entirely (it could be less, it could be more, than doesn't matter cause these 6 hours where really cool !)

So do you had to give this game a try ?
-Yes absolutely !

jump + run + rythm = fun

This game is pretty decent. This game is for you if you want a good but short experience of an actually good game. Of course, this game is pretty hard. But all platformer levels have that fun of collecting all collectibles and most importantly SPEEDRUNNING the levels. I do recommend buying the DLC but also does not recommend at the same time. I'm neutral, so do whatever you want. DLC mechanics are also good but it is lacking a level editor. Thus I give this game a 8/10.