• modular: doesn't necessarily mean a game that is entirely modular; you could take it more as inspiration rather than as directions

• alternate reality game: not to be confused with ARG (augmented reality game, for the few who don't know), this isn't just "what would __ be like in a different universe," this could be completely off-the-wall, "what might a game from a different universe look/play like entirely" (admittedly not the best theme, but could be fun, have had the idea floating around since LD52)

• mixed metaphors: a watched pot gathers no moss, a bird in the hand makes Jack a dull boy; could be fun coming up with wacky ideas, as they say "The sky has its day" or is it "Every dog is the limit"

Normally, I would try to think of themes that are more evocative of actual concrete ideas rather than topics to use, but I had the one idea for a while, and the other two I thought could be fun.