Hello, interesting game.
Some remarks:
I managed to do a double jump if I double click with the mouse to jump. I think that this wasn't supposed to happen since it became way easier to go around those platforms that demand a timely single jump.
I felt that the "gravity" in the game was too little. Normally in platform games, you go down faster. If this was the intention, nevermind.
Probably you noticed this but the second and minutes lesser than 10 in the clock were badly formated.
I found some english errors too.
But overall I had some fun and for a game this has very good quality :)