This game takes the concept of rogain a little farther using two cool tricks
Changing the radius ie. the area where specific question activates. Usually the area is around 10 meters, but you can enlarge it to any size you want.
Assigning questions negative values. So that instead of positive points people get minus points
Effectively you can set areas that players are supposed to avoid in order to get maximum number of points. So it really becomes a navigation exercise.