Nice game. Loved the parallax view of the room in the background, what a neat idea. I like how you integrated the tutorial into the game. Kind of funny that the first higher jump I came to was right under the 'Fast (with two up arrows) sign so I was trying to smash my jump really fast...but that ended up making me do really short jumps. Then to find it was one of a pair of signs Fast or Easy...I chuckled at my mistake.
The jumping mechanic is neat, however my aiming was not always spot on. I left a huge wake of dead chickens.
At the start, I thought the age old question was going to be: Which came first, the chicken or the egg. Funny that's what your Rebirth title page made me think of.
Great submission!