How to (super) bomb your players during the game?

When you facilitate a game and observe where players run you can set up bombs on their way during the game.

1) Create a handful of superpower bomb tasks. In this use case these tasks have to have a transparent icon and radius so these tasks are not visible on the map for the players during the game.
2) Save QR codes of these tasks to your computer (and optionally print because you can scan QR from the screen also).
3) When you create a game, place these superpower tasks on the map in the Locations step and make sure to assign them 0m radius so these can not be activated by GPS. This means players will never acquire these bombs but you as a facilitator can use them on players!

Anagram game with bombs (in orange circle). Instructor can place the bombs during the game by scanning QR codes.