The second
Castlevania game for
Game Boy. You play as Christopher Belmont again, but this time, Dracula has kidnapped his son,
Soleil Soleiyu Belmont. Has smoother gameplay than
the first GB Castlevania, and also (uniquely for the series) has a level select feature at the beginning, reminiscent of the
Mega Man series (so the first four levels can be played in any order).
Belmont's Revenge provides examples of: