The mech in the game is Poppi, who Brad unlocked roughly halfway through the video. He didn't equip her with anything in the QL, but if you go into her equipment page it's super different than the other characters. You can equip chips to customize her a lot more than you can the other blades. You can change her role (she starts as a tank but can be a DPS or healer), her element (she starts as earth but can be whatever), etc.
The logistics around equipping Poppi is also quite different. You upgrade her memory and CPU, etc.
Sorry when I said mechs I meant pilotable mechs. Like Xenogears.
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