The board is a "lilly" pad - Off the edges of the lilly pad is the lake. (will use word lake to not confuse people with the pond game). If your frog ends it's move next to any other frog, it will "scare" the frogs that it landed next to and "push" 1 space away from the frog that landed (and in turn pushing the next frog if next to a frog, and possible push one off the lilly pad - for negative points. Of course, if you push a frog to an empty space, no negative points.

It would

1) make many negative points at the start of the games.
2) make you have to plan your moves a lot more
3) will keep changing the playing board.
4) be too complex to even try to make on this site! :-)