Xe-A-Thoul
No!!
They include Castlevania and Castlevania 3 (dunno about 2, probably not) on one disc, enhanced and stuff.
Actually, Castlevania Chronicles has neither Castlevania 1 or 3. It is an enhanced version of a Castlevania game that was previously only released in Japan, for some system that was only released in Japan. The game is very similar to Castlevania 1 though...with 16-bit graphics, and new levels.
As for Castlevania 3...it is definitley the most hard of them all. Those parts were you had to beat three bosses in a row - the Cyclops, Mummy, and Gargoyle...were just a nightmare to get through.