0:00 Canals 11, the airboat will teleport once so the vortigaunt can work on it, but you can mess with it
0:51 NPCs ignore you if you don't bring the airboat
1:15 Odessa ignores you if you play floor is lava
1:58 Coast 04 easy invisible wall to walk on
2:58 Avoiding the ambush outside of the Nexus
3:19 Nova Prospekt double doors continuously play announcement
4:16 Nova Prospekt get a good jump through the broken window to skip the last antlion guard
4:29 Shadows change angle sometimes
4:53 Citizens jump into the mine pit if you first jump onto the fence top