Interactive 404 pages

If you type in a dead link or a mistyped link, most websites will redirect you to their 404 page. Most 404 pages are fairly unremarkable, but some websites have put a lot of effort into their 404 pages.

Here's a selection of 404 pages with an interactive element to them...

1) Pac-Man

This 404 page from Blue Fountain Media will appeal to Pac-Man fans. It's a playable Pacman maze in the shape of a 404!
https://www.bluefountainmedia.com/charlesfudgemuffin

"Waka waka waka waka..."