[DreamSword]

Assuming I'm remembering these episodes right, OOO also very quickly presents a problem when it comes to its gimmick. That problem being that certain combos are just straight upgrades to others.

Heck, right off the bat we have a prominent example; Red-Green-Yellow is a direct upgrade to Red-Yellow-Green. And yet, what is always the go-to combo in later episodes? Tatoba. It gets especially egregious in the last act of the show when Eiji has a ton more Medals and yet, it's always Tatoba.

Heck, this even apples to individual Medals and not just Combos. Green's' blades are shown multiple times to be better in every aspect to Yellow's' claws. I get that it's implied that Medajalibur is stronger than all of the sharp weapons provided by individual Medals anyway, but IIRC it's also never explained why only Tatoba can use the sword in the first place.