Three Points spent on this Quality is another Cybertronian who follows you.

They are made just like a player character, except they must take three points worth of Complications (in any category) that they receive no benefit from.
If they had it all together they wouldn’t be following you around.

Sidekicks don't accrue Determination Points, when the player character would earn more the sidekick's reset to starting value.

Sidekicks don’t have Sidekicks.

Sidekicks are quasi-player characters.
The player usually controls them but the GM can take control sometimes, probably to cause trouble.
If you don't want to deal with that get a Subordinate instead.