Starts do not make a game an RPG. just because you cant pull up a character sheet and see them does not mean they aren't there. Link has hit points, his weapons do a certain amount of damage. Zelda and other RPGs function the same way. Things are based on a set of stats. Zelda just isn't very open-ended. The most open-ended RPG i have played would have to be the Fallout series. You could do absolutly anything in those games. But open-endness doesn't define an RPG either. The SIMS is very open but it is hardly an RPG. The biggest problem is Adventure games and RPG look so similar it can be hard to distinguish the two.