Controls are super challenging. I think having the jump as a separate button might make more sense. Can see this as a mobile game though with controls being a little more intuitive.

The idea is really good, but I have found the controls a little bit hard to master, I could make some jumps but couldn't keep consistant. (Maybe I'm not good at all hahaha)

Haha, I sort of love it. Very hard at first, but then, like QWOP you sort of get the hang of it. I was able to get to the second level (by accident I think). I would suggest maybe where the player first starts there are a few more poles to grab while you are getting used to it and up the difficulty later. Oh and your entry is marked as having a Mac OSX build, but upon downloading it, I could only see a windows .exe file.  Very enjoyable though. Nice work on the monkey art. Really good gameplay idea here, well done.