We can think of different interaction according to the challenges.
For example:
picking and displaying objects for Hangman;
rotating a fiducial to show the correct number;
If a player picks up a challenge the game stops until the challenge is solved.
I think we could start with the ap's proffered interaction methods. They sound good enough to me.
ReplyDeleteLet's remember we don't want too much guys, this is just a prototype.