Fun game, but the high score list is pointless.
That was a good game - the concept was great, the upgrades were well thought out (with the exception of the energy blast... there's no reason to use that over the kick), and it does a great job of bringing you from barely being able to move the guy to launching him well... pretty much forever.
When you're fully upgraded though, it's very, very, easy to get enough energy for a super kick before he starts to lose height, making it very easy to keep him in the air forever. The high score list is then simply a test of how long you're willing to keep at it before you say "meh" and let him drop. My "meh" point was when both distance and height were >100 million. Apparently, 25 people were more dedicated than that. :P