This app is a tribute to the original programers. However, I changed a couple of aspects on my remake for the 21th century:
- a more forgiving collision detection (the pixel perfect system from the arcade really bothers me), so if the frog "touches" vehicles by a few pixels you do not die instantly. yet, do not push your luck. :-)
- Incremental difficulty as you pass each level is is more progressive.
- No points for moving around. You get whatever points are in your time bank when you reach a goal.
- Both the road and river have a fixed set of logs, cars, crocs, turtles, etc. This allows players to have some muscle memory when the game gets faster (and it does get faster).