It turns off if you uncheck "hokousha/pedestrian network". Based on their placement I'm pretty sure they are elevators, I wonder if they actually do have that angle.

Escalators. The distances between the levels are exaggerated, to make it easier to see what's going on.

Some of the not quite 90 slopes seem to be due to arrows representing more of topological structure not necessarily accurate geometric representation. Could be elevators with doors on both sides, connect doors on opposite sides and you will get a bit of slope. Some of them might spiral stairways. The vertical spacing between floors is likely also exaggerated for clarity. Underground there might be larger gaps since the train tunnels need to go over each other under the rivers and what not, but there is no way 3 above ground floors (4f-2f) have empty gap 5x the ceiling height of individual floor.

Shinjuku isn't the worst - it's big, but every part of it has its own distinct feel, you never get confused about where you are. I actually think Ikebukuro is the worst - there are too many places where you can rotate 180 degrees, or move up or down a floor, and find yourself looking at an exactly identical scene.

Every person I know me included got lost there multiple times, yet some users here get offended by this somehow.

If you take the gross area of Shinjuku, including its multiple maze-like levels, it is comparable to the size of city centers of Florence or Bologna.

anyone who hasn't been lost in Shinjuku-eki has not been to Shinjuku-eki. Or has been, but it was Golden Week and the place was nearly empty.

Please don't do this. The station is very busy and the commuters do not have time to navigate around people focused on their smartphones.

Instead, familiarize yourself with the general layout. There's no need to memorize the entire map, only the portion you will be using. Inside the station there are plenty of signs overhead and even on the floor to help navigate.

It is still the busiest train station in the world by far:

https://en.wikipedia.org/wiki/List_of_busiest_railway_statio...

Doom cannot have hallways above or below other hallways without teleport hacks.

But you could do it in Quake.

Or Descent. Pity the fool who hits the map key mid-multiplayer fight.