tests your response speed of moving left or right. In the game, you drive a kayak on a narrow river from up to down of screen. Using left and right arrows to control your boat. You must avoid colliding with rocks hided in the river; more than 3 times colliding will cause you to lose the game. Your boat will speed up as the time goes by which will make your challenge more difficult, but you can slow your kayak down by boating close the mountain at both sides of screen. Always, the game will be ended up for several seconds due to the high boat speed and scattered rocks, anyway, be confident and challenge yourself! Have fun!