Plenty of games have let us explore a fictionalized slice of Japan's capital city, like Ghostwire: Tokyo, Tokyo Dark, and every mainline game in the Yakuza/Like a Dragon series. If you'd like to do that without having a videogame get in the way, but not actually leave the house, here's your chance.
Anime Tokyo is an art project being made by Yan Ru in Unreal Engine 5 that lets you wander around an animed-up 3D Tokyo. At the moment it contains several city blocks of Shibuya around the 109 department store, which in this reality bears a poster for Project Anime Tokyo rather than an ad for the latest iPhone or whatever, though more areas might be added in the next version of the demo in "several months".
