Portal Test Chamber 17 (Bonus)
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This is the fifth Bonus map of the game. It is unlocked when the original Test Chamber 17 has been completed.
Test Chamber 17
testchmb_a_13.bsp 
Hazards
Strategy
Award requirements
| Portals | Steps | Time | ||||||
|---|---|---|---|---|---|---|---|---|
| Bronze | Silver | Gold | Bronze | Silver | Gold | Bronze | Silver | Gold |
| 4 Portals | 3 Portals | 2 Portals | 215 Steps | 175 Steps | 150 Steps | 160 Seconds | 105 Seconds | 87 Seconds |