thinking the price of this will be $0.1-0.2 each. the game was slated for release 04/30 but has yet to be released. these are not release state override keys, so you won't be able to play it until and if the dev decides to hit the release button.
FYI, this ended up getting released. I'll leave this up, however, for people who still want it at that price.
NOTE: This is simply a summation of the full guidelines.