I'd be up for a Konami Arcade Collection with Haunted Castle on it, hell put versions K and M on it, one's more masochistic that the other, but it could work. Throw in Thunder Cross 1 and 2 (no Gradius and Parodius as I already have them all, along with Twinbee, but if they would have to be on there, fine by me), Crime Fighters 1 and 2, Boot Camp, and several of their other arcade titles, by all means this would be great and I'd gladly spend my money on it. But make sure to put it on a system I own like PS 2, PSP, DS, as well as give it the modern console treatment.