A Return To Form As you enter a brand new single portal only testing track, you encounter a somewhat familiar test chamber. Difficulty: Somewhat Easy Hazards: Positronic Energy Orb, High Energy Pellets, Laser Field...

Forgotten Crushers This next test involves crushers... Wait. Do you remember them? Difficulty: Simple Hazards: Crushers...

Propulsion Conveyors These belts are very fast objects that pull you into a spot with a crusher. Difficulty: Easy Medium (EASY WHEN YOU KNOW WHAT TO DO) Hazards: Goo, Turrets, High Energy Pellets, Crusher...

Virtual Testing G00d morning! Y0u have been in Virtual Reality testing f0r days. Difficulty: Simple Hazards: Laser Beam *UPDATE 1: Fixed First Room being impossible!*...

Catwalk Training GLaDOS shows you how to solve catwalk-restricted test chambers like this eccentric training one. Difficulty: Simple Hazards: Turrets, HEP....

Some Back & Forth Welcome to the first back and forth test chamber in the VeTI's existance. Sorry for being short, this test was made in the car. Difficulty: Easy Hazards: Laser Field, Turrets, Laser,...

Cube Manipulation This next test requires a huge amount of cube placement, and introduces the One Press Button from other maps. Difficulty: Medium Hazards: Lasers, Turrets...

An Old Style Run You enter into the 1970s Autoportals shaft of the old facility. This test chamber is also a prototype of a high tech-generation test chamber. Difficulty: Easy-Medium Hazards: Laser Field...

Decorative Cubes This next test has somehow deteriorated. If you want to get to the next testing track, you'll have to get past the last test in this testing track. Difficulty: Easy. Hazards: Laser Field, Turrets PS: Yes this one is short. Yes this one is ...

Dodging Death This next test is a bit dangerous for the average test subject. Use portals, buttons and pellets to brave this tenth test chamber. Difficulty: Simple Hazards: HEP, Turrets, Laserfield...

Speeding Things Up Testing Speeds throughout Aperture Laboratories have been unnaturally low. Maybe they can fix that! Difficulty: Semi-Medium Hazards: Goo, Laserfields...

GLaDOS prevents you from getting into the Office Elevator....