You say that as if there was any doubt.
He said he wanted to continue the tradition of games like Golden Axe and King of Dragons. I think that was Japanese humility for not mentioning the D&D arcades, in which he worked personally, and are a MUCH more obvious and direct inspiration.
Incidentally, playing Princess Crown is quite interesting in that it seems like the missing link between the D&D arcade and Odin Sphere; it has a lot of elements of each, and even some that are in both (like tiered ring menus) and weren't immediately connected in my mind. It's for example funny how equipment works as a mix of both, including the bonuses they provide, and equipment pieces being both ring menu items (OS) and easily breakable by being hit (D&D). It also contains the seeds (heh) of the seed and cooking systems of Odin Sphere, albeit much simplified.
Those are amazing, and I also love their take on the Wyvern particularly. The giant beetle is also awesome.