Ok, I've solved it. I went right next to the platou, facing it almost directly. Key word here is almost, so mike slowly reaches the lava. When that happens, in the last milisecond he grabs the platou - woot.
This time the road made an inward spiral.
There was a trick cadeaux-grabbing: there was two moving platform, and besides it a pipe with two .. barels on it I guess. Yes, that wa sit. Inside of them were cadeauxes. Now reaching the pipe is minor matter, but officially you would need at leas the basic gad to get back t the moving plaous I think. But the one brought you here CAN be reached with a little luck.
And here came a new enemy! Pigmen! At least they squeeze like pigs. But they are like that nasty serialkiller from Spawn (who killed children) with big hooks, and damage hugh.
But they are fortunatelly stupid. If you manage to be behind them (or at least not front of them) they tend to not notice you! Free shots
And although they are fast when startting waving the hooks, going backwards while shooting still helps. And you can try to walk around them too. But above all if you start shooting like mad (the hell with charging the shadow-gun!), they eventually stop.
the bad thing is, they tend to walk around long distances, so in the middle of the fight anotherone can join the fun.
One other thing to mention: these pigmen were building in a room some kinda mass from tortured souls or something. Although I saw no real point, I destroyed these, just to be on the safe side.
A nasty trick the programmers also inserted. When you climb into the shaft from the yellow corridor, you have to choose 2 holes to jump down. The one on the right, wich is even guarded by a smashing-door, leads to NOWHERE! And you can't climb back! And if you jump into the void, Mike becomes tiny, more tiny, even more tiny... Where the hell this building really is? For the fun change here into sniper-mode just to see where he landed, then reload / teleport out (this last one is not suggested, as returning here takes a looong time, and is not a life-insurance).