I visited one of those places a long time ago in Canada...was pretty fun. Had no idea it was started by Bushnell, who is a person hero of mine.
Shame the game seems to have had no effort put into it.
Minigames can work if theres a good reward structure and lots of (different!) unlockables. WarioWare (specific Twisted) being the best example.
"dumb" games can also be very,very addictive if the balance is right.
I urge people to give this a go:
http://www.ludoid.fr/site/index.php/en/chests-en
The game is nothing more then opening chests with keys, yet because of the various items their is to find its strangely addictive.
Last update; Mice,Plumbers,Animatronics and Airbenders. We also have the socials; Facebook & G+.