Breakthru for NES was a military-themed scrolling shooter, while Breakthru for Game Boy, SNES, and PC was a SameGame clone that might appeal to Tetris fans. Alternate reality games are games that are played in several media at once: mail, phone, e-mail, SMS, web sites, chat, etc. Possibly the most famous ARGs have been the AI game and I Love Bees. For four months in 2002, a group called "cloudmakers" ran an alternate reality game called Lockjaw. But does anybody really remember it? It gets under 1,000 Google hits, compared to 3,400 for the exact title of a random Tetris clone. Why I mention these will become clear later once I've kicked a few walls.
The core question: Do enough people remember the Lockjaw ARG that I will run into problems if I name one of my own projects "Lockjaw"?