My top score is 310 million (I got lucky and hit a lot of power-ups). Even if I don't hit any power-ups, I can get 250 million. Advice: at the start, jump straight up into the air, do a corkscrew, flip around and hit the water at the perfect angle (this takes a little practice). This way you get a "carnival" and "reversal." Jump back into the air and do as many tricks as you can while staying as horizontal as possible. By 1:00, at the most, you should see the waves start to move in reverse. Do a tailslide, coming in at the most horizontal angle possible, then jump. Hopefully you'll reach the starslide area right above the moon. Starslide from there. If you do it right, you can hit "New Horizons" (the rock planet) twice, then come back down to Earth with a couple of seconds left and make one last jump to the restaurant.
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 "Submachine 1: the basement"){kind=icon}