Portal: Prelude Test Chamber 09 (Bonus)
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This is the sixth Bonus map of the game. It is unlocked when the original Test Chamber 09 has been completed.
Test Chamber 09 (Bonus)
challenge_09.bsp 
Hazards
Strategy
Portals
- To do
Steps
- To do
Time
- To do
Award requirements
| Portals | Steps | Time | ||||||
|---|---|---|---|---|---|---|---|---|
| Bronze | Silver | Gold | Bronze | Silver | Gold | Bronze | Silver | Gold |
| 5 Portals | 4 Portals | 3 Portals | 40 Steps | 30 Steps | 20 Steps | 40 Seconds | 30 Seconds | 20 Seconds |
Video strategies
- To do