Are there easter eggs?

[Nuuskmõmmik]

???

[Peter - Captain Obvious]

In my time replaying this, there are some.

[teamsp13]

Some ingame streets are named after game devs.

[Kalivrist]

I found a street hydrant on the roof, seems weird cause you can't get there without glitching :D

[teamsp13]

Nice necro.
There's something intersting, however It is not an easter egg really. Almost all levels have a gate on 0,0,0 coordinate. If you reach this via cheats, you can press 'action' button near it and it will throw you a rope. After that the game will crash. But you can somehow (i forgot) delay the crash by running with the rope. Once you stop, game will crash anyway.