Portal Test Chamber 18 (Advanced)

This is the final advanced chamber of the game. This version is unlocked when the original Test Chamber 18 has been completed.

Extra challenges

 * Removed some portal conductive walls.
 * Pellet launcher has been removed.
 * Harder flinging when retrieving the Weighted Storage Cube.
 * Platforms lower when traversed though a portal.

Hazards

 * High Energy Pellets
 * Cube Hazard
 * Goo
 * Turrets