The iJustine Challenge is a special run of Portal consisting of specific rules made up by the runners. Below are the updated official ruleset that must be followed.

RULES:
1.) The game must be played at host_timescale 5 (You may play at a lower speed, however it won't count)

2.) You may slow down time 3 times in total, but it MUST be at host_timescale 0.5.

3.) You must have a camera pointing at your keyboard to prove authenticity.

4.) During Chamber 16, you must have the Talon Trot song from Banjo Kazooie playing the entire time until you beat the chamber.

5.) You must rescue Chairy (the knocked over chair in second half of the rocket turret room) and bring him to the chairs outside GLaDOS's chamber. Chairy must be upright upon his delivery to his friends.

6.) During each loading zone you must visibly dab (fully visible, you may have a v-tuber model dab if camera is unavailable).

7.) After each loading zone you must run a random number generator between 0 and 10. Anything over 3 you must add to your Mouse sensitivity. Getting a 0 allows you to reset your sensitivity.

8.) You must bind the R key to spawn a bird. One bird must be spawned in each playthrough. It can be any bird you wish. (The console command for the crow is "npc_create npc_crow")

9.) As soon as you begin the escape segment during Chamber 19, you must play Breaking Bad Remix (Seasons 3-5) on repeat until you beat GLaDOS. If, at any point, you find yourself humming or singing along to Breaking Bad Remix (Seasons 3-5), you must pause the challenge and hum or sing along until the end of the loop. You may continue the challenge once the loop ends.

10.) You must lie at one point during your run. The quality and nature of the lie does not matter, and can be as simple as an untrue statement or as complex as lying about having a live keyboard webcam. You must be able to cite this lie when asked. You may lie more than once during a run, but it is not required and may reflect poorly on your character.

11.) While in possession of the dual portal gun, never intentionally enter an orange portal. You can accidentally fall back into an orange portal, as long as you didn't shoot a new blue portal first. Objects can pass through any portal.

12.) You must not operate the mouse with your right hand at any point during the run

If you've completed the challenge and your VOD has been approved, you may create one amendment to the rules of the challenge (adding, changing, or removing one rule) which all future attempts of the iJustine Challenge must abide. Your new and improved iJustine Challenge ruleset must be reasonably within human bounds - if its possibility is called into question, you may be required to prove your new rule's viability.

The precise means of how you must prove it will be up to the challenge moderators. The iJustine Challenge VOD submissions must be sent to Robbydude for verification.

Twitter - @ROBBYDUDE
Email - robby@robby.zone

RULE CHANGES

1) clown_depot (VOD link)
Rule added - Talon Trot must be played in Chamber 16, Chairy must be brought to the end

2) TwilightPB (VOD link)
Rule added - During each loading zone you must visibly dab

3) Robbydude (VOD link)
Rule changed - host_timescale 10 reduced to 5.

4) TheKorgusLord (VOD link)
Rule added - After each loading zone, you must run a random number generator between 0 and 10. Anything over 3 you must add to your Mouse sensitivity. Getting a 0 allows you to reset your sensitivity.

5) snowyponi (VOD link)
Rule changed - However much you changed your mouse sensitivity (referencing rule change #4), you must multiply that by 2 and add it to your FOV.

6) junkbot3000 (VOD link)
Rule added - You must bind the R key to spawn a bird. One bird must be spawned in each playthrough. It can be any bird you wish. (The console command for the crow is "npc_create npc_crow")

7) Robbydude (VOD link)
Rule changed - You no longer need to change the FOV for Rule 7 (See: rule change #4 and #5).

8) pennypeachy (VOD link)
Rule added - As soon as you begin the escape segment during Chamber 19, you must play Breaking Bad Remix (Seasons 3-5) on repeat until you beat GLaDOS. If, at any point, you find yourself humming or singing along to Breaking Bad Remix (Seasons 3-5), you must pause the challenge and hum or sing along until the end of the loop. You may continue the challenge once the loop ends.

9) barroooooo (VOD link)
Rule added - You must lie at one point during your run. The quality and nature of the lie does not matter, and can be as simple as an untrue statement or as complex as lying about having a live keyboard webcam. You must be able to cite this lie when asked. You may lie more than once during a run, but it is not required and may reflect poorly on your character.

10) Clickster500 (VOD link)
While in possession of the dual portal gun, never intentionally enter an orange portal. You can accidentally fall back into an orange portal, as long as you didn't shoot a new blue portal first. Objects can pass through any portal.

11) Azalea__Rose (VOD link)
You must not operate the mouse with your right hand at any point during the run

HALL OF FAME
Players who have beaten the iJustine Challenge in the original host_timescale 10 speed without slow downs.

snowyponi - 20:08 (VOD link)
TheKorgusLord - 23:52 (VOD link)
pennypeachy - 28:05 (VOD link)
TwilightPB - 38:00 (VOD link)