Mechanics

Even though Aperture Apocalypse is NOT made with Valve Hammer Editor, Party Escort Bot = Beans managed to create new mechanics entirely out of the Puzzle Maker features, such as:

Observation Rooms

Alternate Observation Room
Openable Observation Room

Chamberlocks

Alternate Chamberlock

Doors

Panel Door
Fake Door

Platforms

Trap Platform

Other

Test Element Transportation Tube