On this page, you will find the best scores for each challenge of Portal: Prelude without exploiting bugs.
If you think you can beat one of those scores, we urge you to record yourself, to upload the video somewhere and to send us the following informations to challenges@portalprelude.com.
Least Portals (16/16) Least Steps (11/16) Least Time (14/16)
Test Chamber 03 (3/3) Test Chamber 04 (3/3) Test Chamber 05 (3/3) Test Chamber 07 (3/3) Test Chamber 08 (3/3) Test Chamber 09 (3/3) Test Chamber 10 (3/3) Test Chamber 11 (3/3) Test Chamber 12 (3/3) Test Chamber 13 (3/3) Test Chamber 14 (2/3) Test Chamber 15 (1/3) Test Chamber 16 (2/3) Test Chamber 17 (2/3) Test Chamber 18 (3/3) Test Chamber 19 (1/3)