Imagine the original Zelda game and... that's about it. Not quite an RPG in my opinion, but we cover Zelda so we should cover this.
Zelda was grandfathered in, a lot of places covered it for RPGs and it sounds like it was an attempt to (greatly) simplify games like Ultima, albeit in such a manner it made a new type of game entirely. However, something like Darksiders isn't covered when it's even more inarguably a Zelda clone, and neither is Okami. In fact, I've already made the case that this is something like a reverse Okami: that game really does have enough RPG-type elements to be argued as one regardless of the fact it's derivative of Zelda, whereas this eschews more of them and is only lightly Zelda/Roguelike, coming off more like an arcade game that LOOKS like an RPG at best.
And I'd been considering this for awhile, but now that this topic's been kindled anyway I may as well move this pending any editors disagreeing/covering the game.