Bart Simpson's skateboarding in the woods. He passes by quagmires, rocks, water and piles of wood, that he has to jump across. When he comes across branches or road signs, he has to pass underneath them. Mind the woodpecker as well, that's aiming to peck his head! It's important, too, that he keeps on skating within the screen, that moves from the left to the right. If Bart doesn't do so, he'll have to start all over again.
Press the up arrow to jump, the down arrow to duck, the right arrow to accelerate and the left arrow to slow down.