Castlevania
Castlevania II Simon’s Quest
Castlevania III Dracula’s Curse
Super Castlevania IV
Castlevania The Adventure
Castlevania II Belmont’s Revenge
Castlevania Bloodlines
Kid Dracula
Kid Dracula was more or less a port of the NES version onto Game Boy so technically doesn’t count.
The only other one I can think of that you might be referring to is Castlevania Legends but they didn’t bother bundling it with this collection for whatever reason.
Castlevania and Castlevania III for the NES side.
Super Castlevania IV
The two Game Boy Castlevanias.
There were three Game Boy Castlevanias.
Kid Dracula was more or less a port of the NES version onto Game Boy so technically doesn’t count.
The only other one I can think of that you might be referring to is Castlevania Legends but they didn’t bother bundling it with this collection for whatever reason.