The Castlevania games are great I agree. Initially I never paid much attention to them but as soon as I got to play one I finally understood why people were hyping them up so much. My personal favorite is symphony of the night and I'm hoping to try the ones on GBA too.Unfair question...simply too many good games to count...Castlevania: Circle of the Moon or Aria of Sorrow; Metroid: Zero Mission. Mario and Luigi Superstar Saga...I mean come on, this isn't a fair question, you can't choose just one!