Here is the full list of all 14 Castlevania Anniversary Collection achievements worth 1,000 gamerscore.
Complete all games
Complete Castlevania Bloodlines as Eric Lecarde
Complete Castlevania II Belmont's Revenge
Play each game
Complete Castlevania The Adventure
Complete Super Castlevania IV
Complete Castlevania III Dracula's Curse with Alucard
Complete Kid Dracula
Complete Castlevania III Dracula's Curse with Grant DaNasty
Complete Castlevania Bloodlines as John Morris
Complete Castlevania
Complete Castlevania III Dracula's Curse with Sypha Belnades
Complete Castlevania III Dracula's Curse only with Trevor Belmont
Complete Castlevania II Simon's Quest