Table 2.

Participant open-ended response to the Game Experience Survey.

Question	Sample Response 1	Sample Response 2	Sample Response 3
What did you like most about the game?	“It was a fun way to engage my back in exercise and I was most focused on the game than the pain in my body.”	“The levels increased in difficulty, not too much, but enough to make each level more challenging.”	“The game was fun and interactive. I do not like video games or anything related to them, but I enjoyed playing this game.”
What did you like least about the game?	“I didn’t like how low the balls went, but that was only because of my back.”	“When it threw balls at my feet I had to bend lower, that was not cool. It hurt my back the most.”	“The bending over to hit the extra points ball. That caused minor pain in my back and seemed difficult for someone with back pain.”
What would make the game better?	Have a variety of avatars, be able to have a wider range of motion (move around more)	Possibility of different colors. If someone is red/green color deficient, they would not be able to differentiate between the body throws and head throws aside from sound.	Having different arenas, more talking from the game would make it feel more interactive
What would make the game easier to learn?	Practice rounds that incorporate different ball speeds and target ranges (high and low targets)	I think getting more practice would make it easier to learn.	Nothing, the practice round did its job and helped to be able to know what to expect.