on dive: it's pure luck. just drop some spew down there and hope it crumbles up in a soft bunch for you to land in, rest is just constantly pressing up, trying to reach one end and tap the button before going to the next end
It's important to remember that the line between the dots can touch the black parts as much as you like, so if there's a box with two white areas of each side, just plow over hte box with one dot on each side. This is important to remember when going on the fourth map