call medic to taunt kill through walls

4:45
melee attack + switching class makes you invisible

4:48
how crit hacking was stopped in tf2 (& how crit hacking still kinda works today)

12:15
SOMEHOW Your Stupid Weapon Ideas Actually Worked

6:30
tf2’s huntsman hit detection is magnetic

5:09
"fixed a server crash caused by Sniper trying to eat his gun" ??? - explaining tf2's weird new patch

6:03
tf2’s syringe gun isn’t what it looks like...

23:48
An Endless Labyrinth: How BIG is Aperture Science?

4:40