This is also a fun activity to use with people. I've used variations of this with groups to teach teamwork and communication skills. Works with the 6 "frogs", can add as many as you want on each side. Throw some carpet squares down for rocks, line people up, give them basic outline and tell them to go at it. Every time they get stuck, they have to go back to the very beginning.
Handicap them as desired. Only so many people can talk, blindfold a couple, etc. Or give them a coach from the sidelines. Put the kid who thinks they know it all at the end of the line so he/she doesn't have much control over who is moving up front. It can be rather interesting observing group dynamics with this especially when they start to get frustrated!