Yep, wish they can allow you to go to different dimensions and get secret characters, and equip the weapon treasures you can get. Like fer'intance: The Magical Gun can make Mustadio learn auto-Haste and Accumulate. (God, that's the dream sniper!) And the blue Materia can make Cloud use Aeris as a summon. Imagine Aeris appearing as a random summon, like first she uses an attack, then she heals your party and so on.

Think my friends! Think hard! Imagine if that were true!