Devil May Cry does not have RPG elements. Yes, you can use blue orbs to increase your maximum life. YOU CAN DO THE SAME FUCKING THING IN BANJO-KAZOOIE WITH HOLLOW HONEYCOMBS. Banjo-Kazooie does not have RPG elements. Neither does Devil May Cry.
Yes, you can collect new weapons to equip in DMC. YOU CAN DO THE SAME DAMNED THING IN MEGA MAN. Mega Man does not have RPG elements. Neither does Devil May Cry.
Banjo-Kazooie is a 3D platformer. Mega Man is a shooter/platformer. DMC is an action game, for the love of Crap.