Billboard Day
Find all the reporgrammable billboards around Chronopolis, and switch 'em up. You can interact with the console on each one to upload anything in your camera roll to the billboard. The billboards are in the following locations-
Hala
Xandar
Asgard
Nueva York
Old West
Manhattan
Medieval England
Hydra Empire
Wakanda
Change up every board in Chronopolis to earn Black Widow's Motorbike, an ideal vehicle for winning races.