Players: 1 or 2
Bubble Bobble is an arcade-ported game with the cuteness jacked up to an insanely high level. Many gamers acclaim this game to be a great classic, with general feelings on it usually being in the range of average to excellent.
While the simple game design can prove be very addicting, some gamers are turned off by the many, many levels that the game contains, though all are accessible with a password. But what makes this game even greater is the excellent two-player simultaneous play that's available.