Peekaboo

Details missing! What park, where, and what are those holes?

Yes, it is a pretty ridiculously blase description, as if this kind of park were two-a-penny. That's SkyTree in the background so it must be pretty near there.

Weird...

That's Sumida koen, by the Sumida river on the Asakusa / Taito-ku side.

Can you play Whack-a-Mole with them?

Teletubbies...Teletubbies

Booby traps for fat people.

Hope there are no claustrophobics nearby. Cute couple, though.

whoever posted the photo and title may well be a Devo fan

https://www.youtube.com/watch?v=ZBRREj1CLpQ

Strange...