Yeah, the "Jump" template has to go in the book now. It's got wall jumping.
I think it's pretty clear now. You can make games with Hype. That was the mission I set out to achieve with the book. This clinches it.
UPDATE: Firefox support was terrible. The template was updated to better support that browser.
ANOTHER UPDATE: Wow, if I would have made simplistic controls like this — ten years ago — I'd probably be rich by now. The template now has touch controls. Swipe left / right to move, swipe down to stop, tap to jump.
YET ANOTHER UPDATE: There's a nice discussion about this template here...