If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
This is an experiment in a gameplay mechanic. You can send out a grappling ray which lets you swing like spider man or bionic commando. But you can also push with the ray and fly off the ground.
Control are standard FPS. wasd to move and mouse to look.
Left button pulls and right button pushes. Avoid the water and follow the arrow to arrive.