"This is a Japan-only upgraded version of Typing Of The Dead which was also released on Windows. The upgrades include new minigames and a new feature where you can compete against a clone of yourself. The Mac version also has the characters carrying compact Macs on their backs. One of the very few titles that Sega released specifically for Macs in Japan."
The Typing Of The Dead: Zombie Da! Typing Lariat for Mac - Macintosh Garden