Portal: Prelude - Chamber 03 / Inbounds - 15 Seconds

Portal: Prelude - Chamber 03 / Inbounds - 15 seconds

Portal: Prelude - Chamber 3 - Inbounds - 14s (WR)

Portal Prelude: Chamber 12 & 15 - Least Time

Portal: Prelude - Test Chamber 03

Portal: Prelude - Chamber 15 / OoB - 14 seconds

Portal Prelude : Test Chamber 15 Bug

Portal: Prelude - Chamber 15 / OoB - 13 seconds

Portal: Prelude - Chamber 17 / Inbounds - 48 seconds

Portal: Prelude - Chamber 13 / Inbounds - 10 seconds

Portal: Prelude - Chamber 16 / OoB - 16 seconds

Portal: Prelude - Chamber 16 / Inbounds - 42 seconds

Portal: Prelude - Chamber 05 / Inbounds - 19 seconds

Portal: Prelude - Chamber 17 / Inbounds - 58 seconds

Portal Prelude - Chamber 15 - Time Challenge

Portal: Prelude - Chamber 19 / OoB - 19 seconds

Portal: Prelude - Chamber 08 / Inbounds - 11 seconds

Portal: Prelude - Chamber 17 / Inbounds - 55 seconds

Portal Prelude 1.1.5 test 15-3 (Least Time)

Portal Prelude - Reliable Walkthrough (Chamber 03)

Misha Ratkevich

Portal: Prelude - Chamber 04 / Inbounds - 11 seconds