[Enchilada645]

Given how it works, and it's basically a partial hardware upgrade, the name going from 01 to 02, it makes sense given the recaps.

The Ark basically has all combat data for 01 thanks to the recap specials, meaning Ark-Zero likely has it as well. So instead of an upgrade for 01 they instead decide to counter via upgrading the hardware from 01 to 02, which is pretty clever since I'm sure this is likely what they'll be doing.

Also I remember a few people elsewhere bringing up a good point in that it reminds them a lot of Stronger's Charge Up form in terms of how the upgrade is visually handled.