For the green: Please download this newer version of the Meggy Jr RGB library. If you still have trouble, open up the MeggyJr.h file, and try the alternate color mappings there:
For releasing games, the best thing to do would be to get a github account, and upload your game there. If you like, you can use a “pull request” on github to suggest adding it to our example set. Once the game is up somewhere on the internet like that, we can add it to the list of Meggy Jr RGB projects: