Portal Excursion | Funnel Glitch

| Name | Game | Mechanism | |------|------|-----------| | Portal boost glitch | Portal 1 | Shooting portal while moving through another doubles speed | | Funnel skip | Portal 2 | Using funnel to bypass activation triggers | | Excursion funnel launch | Portal 2 | Pre-patch unlimited velocity bug | | Portal loop acceleration | Both | Two portals facing → infinite fall speed |

You will immediately drop and regain gravity if you: portal excursion funnel glitch

Move out of the funnel using your directional keys. You should now be hovering in a zero-gravity state. Navigating and Controlling Flight | Name | Game | Mechanism | |------|------|-----------|

The Portal Excursion Funnel Glitch is an intriguing phenomenon that showcases the complexity and creativity of the Portal game's physics engine. While it may not be an officially supported feature, the glitch has become a beloved aspect of the game's community, with many players enjoying the challenge and creativity it brings to the game. While it may not be an officially supported

| Test | What to observe | |------|----------------| | Funnel aimed directly at a portal | Does the funnel force continue on the other side? (It should not, but sometimes the game misapplies velocity) | | Two portals facing each other inside a funnel | Player gets launched at infinite speed (old exploit, patched in some versions) | | Funnel ending exactly at a portal edge | Collision bug may allow partial clipping | | Funnel direction reversed while inside | Velocity may not reset properly → speed glitch |

To change your height, you must bump into level geometry (like sloped pipes or ceilings) or use props like cubes to push yourself up or down.