During Winston's ejection from the space colony, Hammond "hitched" a ride by attaching his own ball-shaped escape pod to Winston's.
Blizzard has done a great job keeping Hammond's identity a secret, but I've figured it out. What remains of Wrecking Ball on Horizon Lunar Colony is some status information, a room he might have lived in, and an escape plan involving a spherical ball - not a lot that points to "rodent in a robot".
As for how Hammond got that giant robot hamster ball, and why he decided to make huge guns come out of it...
Overwatch is a game that features many fantastic elements, some of which have a slightly tongue-in-cheek element to them, but this seems to be the most ridiculous that Blizzard has actually put in the game.
As seen in the teaser trailer, Wrecking Ball has the ability to transform into a ball and roll around to increase his movement speed, and his automatic weapons are known as Quad Cannons. As the sixth tank hero in the Overwatch lineup, Wrecking Ball provides disruption while also being an aggressive bruiser that bullies the enemy's backline, eliminating vulnerable heroes that are left unguarded.
Here's a look at Wrecking Ball's abilities and their descriptions... In addition to setting up Piledrive, Wrecking Ball's Grappling Claw enables him to reach top speed.
Hammond can also deploy a minefield of proximity explosives and slam into the ground with his piledriver ability that launches enemies into the air. The only way the Hammond knows how to travel: a ball.
Until last night, fans were unsure of whether Hammond and the hamster character were one and the same.
He may not be Jetpack Cat, but Hammond is still a furry little creature of death.