I put a load script before it to auto put the level 0 when loaded it will be a bit quicker then :)

on *:LOAD: {
  echo 9 -a You Have Loaded The Frogger Game.
  echo 9 -a I Do Hope You Like It.
  echo 9 -a Ask Someone Else To Type /me crosses the road.
  set %lvl 0
}

also there is no way to advance though the levels(parts) i changed it down to 4 ways, hit by tank, hit by car, progress, and level(go to the next part). And it works for me just fine nice idea, but the script needs alot of work to get it to work.

i will repost the script once i get it to work, and link it back to here giving you credit.

Cheers,
~T012