The demo that I spent the most time with is King of Frogs.
Very interesting game concept. Although, I am not sure whether the functions are consistent.
I tested it today again with my son, and he discovered that you need only about 20 of power and almost the whole desktop to move the mouse from the left to the right to get "motivation" of 500 and above, although 500 was better than higher, because the jump lasts longer with higher "motivation".
Our record is one jump with about 16 seconds.