Portal has a lot of maps made throughout development, about 70 to be precise. In this video, we'll be looking at a handful of beta levels, ones that most people would consider weird.

0:00 - Intro
1:20 - testroom_point_camera
1:48 - testroom_point_camera_teleport
2:25 - zoo_combine
4:29 - zoo_lab
6:10 - zoo_testarea
8:00 - testroom_trigger_portal
9:08 - lab_lvl1
10:19 - ragdoll_test
10:51 - bonus_longjump
11:37 - liquidportal_test
12:28 - bts_styleguide
13:55 - devtest_01
15:13 - test_fling
15:54 - portal_bts_styleguide
17:15 - Outro

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Hey everyone, the name's Ossy Flawol!