I really like the double jump limiting concept. I didn't get all the gems not sure where I missed them. Some 8 bit tunes in the background would take it up a level!
Glad you liked the jumping idea, and yeah, the gems can sometimes be hard to see, might need to work on the placement a little so they don't blend into the background as much...
But I'm absolutley going to add some tunes later. Thank you for the feedback.