Time Gal is the game that convinced me to buy a Sega CD back in the day. Such a great era in gaming, when developers were struggling to figure out how to use this strange new medium.
Personally, I was just amazed that I was finally able to play so many great laserdisc games at home for the first time (Dragon's Lair, Space Ace, Time Gal, Road Avenger, Revenge of the Ninja, Cobra Command, etc.). I wonder why there were never any games like this on the Duo?
Anyhoo, I'm rambling a bit here... please don't enter me, as I already own the crap out of this.