Ok my verdict of this game, very fun and retains the challenge and cheapness of the arcade version, but still today feels like a King of Dragons/Knights of the Round sequel more than anything else (only the item pickups are unique from KoD). I like the ability to play with scanlines like old times, and best of all the games not in HD, so my old eyes can sit there and feast upon the closest look to the originals I could get this side of owning an old CRT TV (and I don't).
Recommend buying unless you can get ahold of the Japanese version where the games are in physical copy format.
Also Simpsons and X-Men gotten, both fun and like D&D they seemed to add something to help give the games replay value, in CoM's case, they added a shitload of things to physically unlock (yes! just like it used to be!)