Level 16(?) problem
 

Level 15 glitch*

I were in the mind of the bear, I put down the rock in the entrance to the cave, then I think I got the fail-sound, but I returned to reality and found myself standing in his cave :P
I´ve been walking around outside the cave, but not found anything, just ice and snow, and I can go through most of the ice blocks around me.

You need to let one man go inside the cave before touch the rock.
Then you need escape from another exit after second men with the gun escape.

Hehe I know that, solved it some minutes after, I realized it was a glitch, that´s why I wrote "level 15 glitch*" instead :P