Ultimate Spot the Difference Activity Book: Boredom Busters

Villainous time-traveller Rex Tyme is hopping through history, meddling with things as he goes. Hot on his trail are Ivan Idea and Honor Mission - the Boredom Busters. Help them to spot the changes in each time zone Rex has tinkered with, from Ancient Rome to Mooncity One. You can also spot Rex in each of the changed scenes... if you look closely enough.