It really isn't worth it even if you have a PSP. The polygon graphics are atrocious, though better than, say, the upcoming Rocket Knight Adventures remake. I guess polygon 2.5D stuff is a shit-ton easier to do than hand-drawn/painted 2D backdrops scrolling at different speeds with sprites. I would so love to see Castlevania 1, 3, Bloodlines, Dracula X remade in proper 2D with painted visuals and no polygons. The new Castlevania Adventure WiiBirth is pretty good, but not as good as such a game could be.