We’ve heard about Sega’s NiGHTS: Journey of Dreams using the Wii weather channel to control weather within the game, but in an article on 1Up, Sega has revealed that there is some additional hidden content on the disc. In the “My Dream” part of the game, players can raise their own A-Life and the hidden content will allow them to have monthly celebrations. Using the Wii calendar as a time clock, the little AIs can celebrate various holidays each month including New Years, Chinese New Year, Halloween, Thanksgiving and even the Bull-Run. Make the jump to check out each month’s activities.

[Thanks, Adam]