Portal – Level 15 | Advanced Flings, Double Switch & Pellet Corridor

The ultimate momentum exam. In this video, I play Level 15 (Test Chamber 15) in Portal, one of the longest and most technical chambers, with a double fling over a barrier, a long hall crossed only with portals and moving platforms, and a section where you must sync two switches with a High Energy Pellet to open the final door. At the start, I place a blue portal high up on the wall panel above the barrier and an orange portal in the small pit, then jump in; as I fall toward the floor, I quickly move the orange portal under me for a double fling that launches me cleanly over the barrier. In the long corridor with moving platforms, I fire a blue portal at the wall under the arrow at the far end and place the orange portal near me, then peek through to catch a platform, warp onto it, and repeat this portal‑hopping to reach the room with the two red buttons. There, I set up portals between the two switch rooms so I can hit both buttons fast enough to open the double doors, then I shoot one portal on the extended wall panel facing the pellet receiver and the other on the scorch mark where the pellet hits, sending the High Energy Pellet straight into the receiver and lowering the Victory Lift. Finally, I reuse the momentum jump to get back over the central barrier, drop into a floor portal to pop out above the lowered lift, land on it, and ride it straight into the chamberlock to Test Chamber 16. If you enjoy momentum‑based puzzles and tight timing, hit LIKE, SUBSCRIBE for the rest of the Portal levels, and tell me in the comments which section tilted you the most: the double fling, the moving platforms, or the double‑switch pellet room. Game: Portal Level: Test Chamber 15 (advanced flings & double‑switch pellet) Genre: Puzzle / First‑Person #Portal #TestChamber15 #Momentum #HighEnergyPellet #PuzzleGame