The gameplay is very simple and design is intuitive. You have a timer and lots of floating bubbles to pop.
Great game to showcase seniors what is mixed reality, it was very easy to show it to my parents and even elderly grandmother.
You can also make the play area as big as you like, so the game can become like an exercise, where you run around trying to get all the goodies.
I wish there was a multiplayer version, so several people could play the game in the same area.