Weird. I discovered how to do startrekking, also found the trophy that belongs to it, but after completing a game, startrekking is not tagged
At least I killed 4 enemy by one bomb, discovered how to do mountain climbing in level 6, got trophy weapon upgrade and found another secret passage. My total points achievement is only 59 percent, though :-/
Also - did anyone try to do level 2 in reversal direction (clockwise, go to right)? I would like to know if it is possible, I cant get through the second screen, even using grenades.