@LandofHartbjorn Actually the respective heroes and villains vaguely recall what happened, being aware of each other without needing to rewrite time and space; the supporting cast though, seems to have no recollection at all.

@badvgtakes Legacy Collection is pretty friendly to get into, the rewind function is useful for a beginner to ease you in. Otherwise the Archie Comics were fantastic stuff for as long as they lasted, cannot recommend them enough.

Verti-Cal and Horizont-Al were once peaceful gents before devolving into warmongering geometric demigods from the result of their zone being destroyed. Blaming each other, they battled and were arrested by the Zone Cops. They're pretty nice when they're wearing their collars.

The aforementioned collars are known as control collars. When applied, they forcefully restrain the power of the wielder. It may hurt in the moment due to the sudden drop in power, but the wearer will eventually become "comfortable".

Shadow has two lines in the entirety of Worlds Unite, this is because Team Dark is killed off early into the story and then makes an arrogant response to Sonic about his well-being after he called him to make sure he wasn't still dead after reverting the worlds.