1)Get all the stars in the first couple of tries (don't try to finish all at the same time). 2)When you touch the second button of the tunnel, jump to the sides of the mini tubes and hold the certain arrow key to go 3x as fast. 3)When you reach the tall tower part, you should be at least 4 turtle lengths away from the snake below. 4)Do the same in step 2, except do for the 3rd button. 5)Jumping on the way down can help your speed.
Fantastic level so far, but I have no idea how to do the part after the checkpoint. The snake is so fast that every time I hit the switch that opens the way back down to the snake, it is already gone, no matter how fast I do it.