I think a Player Size/Scale Chip will be a useful addition. This chip would scale players up or down in size, allowing new gameplay opportunities. For example, in a hide and seek room, the seeker could be large, making it simpler to spot hiders, while the hiders could be small to fit into small hiding spots.
They were in fact, asking this in one of there test/quiz things that they do every once in awhile
Wish they had height adjustment in general. 
well they might be adding it