If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game, you go through the himalayas, and see what its like in a game. Supposedly, you are delivering some stuff that will expire in 3 minutes, so you need to rush over to China. You go through the natural barrier to get to the other side. But, its easier said that done.
WASD to move, also arrow keys are an option to move. Space bar to jump. If need to climb, simultaneously press the space bar to climb.