I agree, plucking down a buck for two minute game has kept me out of
the arcades recently.
Arcade: Bubble Symphony, Ghouls and Ghosts, or Radiant Silvergun
PC Engine- So many great games but I'll take Drac X for its length and
replayablity.
Hucard- Dragon's Curse ( I play it over and over and it never seems to get old)
Duo game- 3 in 1 disk, just so I'd have four great games to play ;).
*-neo
Sierra's half-Life for Dreamcast
http://www.geocities.com/sierraishalfassed/home.html