Just all Secrets and Mega Secrets, nothing else. A counter is showing in the top right corner. I cleared all Levels before, you can move free in all levels to get the Secrets except 2 levels i mention it under the Videos* The Mega Secrets : E1M4 Cultural Divide……………….2:03 E2M4 D.C. Meltdown……………….0:33 E3M4 Executive Disorder………….1:24…