This is a game that's "supposed" to be able to be played on Chrome even while offline. I just tried it and couldn't get it to work, but that doesn't mean anything...except that I am not able to follow simple directions, a distinct possibility.
They provide the code to embed it, though; hit the space bar to start, also using it to jump over the cactus - use the down arrow to crouch.
EDIT: OK, I usually test these things in my ToTG "practice" blog, but didn't do it with this, sorry. Every time I hit the space bar, my page scrolled.
If you want to play the game or get the code to make your own HTML page, just visit
Dino Game.