Holy Diver plays like a mix between mega man and castlevania. It's tough but fair as the level design is very tight and forces the player to use all of their weapons. Finishing each level gives you a new weapon, each of which have different effects. This game should not be missed and we're happy to finally make this game available in English for the NES.
While being a great game (personally it's in my nes top 20), there is a significant lack of Dio.