That works too, but the only Big I wouldn't change is Big O. Big Duo only had one-shot nukes, and near useless gatling-gun and missile systems. Big Fau's Torpedo Arms were near pointless (yes, let's shoot two slow-moving drills that Big O can friggin'
catch and strand Fau on land), but the DD beams (the tentacle things on the back) and Charger Cannons (those energy-howitzers in the front) were pretty cool. Big Venus just vanishes things with a happy grin...on second thought, that one doesn't need weapons.
If you want to talk about swapping out a weapons system for something else, that could be cool.
Are you talking about the arms switcheroo thing Big O does in the manga? 'Cause I liked that.
