This game is exactly what it bills itself to be. Good fun, and if old games weren't all about making that perfect jump, what where they about? Well done, and thanks for the fun!
Like others have said... it's a good game, fun, and definitely playable. But to pay for it when there are so many other free flash games to play doesn't make much sense.
Okay, the bug that doesn't allow level 1 to end ... I experienced it twice. The third time through, I decided to smash all of the force blocks before killing the 'mobile' enemies, and it allowed level 1 to finish. The first two times, the last enemies on the screen were force blocks -- if anybody else can try this to help the dev out and confirm, that would be nice. Make sure and get the one that's somewhat hidden in the upper left-hand corner.
Fun game! Very nice atmosphere, it seems to do exactly what you want it to.
For those having problems with the snake, just assume that it's going to strike where you are. There's enough time to jump or fall away from your current position to get away from it. It may take a few tries, but you'll get it.
Fine game for young 'uns, except for the killing. Take that out, and you've got a great educational and skill -enhancing game for toddlers. It might need to be a little slower as well.