i tried them with the method posted in the pbay torrent comments. didn't work out too well. i never even got to the end of any of those maps, because missing a jump would result in an endless fall, not in death, so i had to restart the level every time i failed.
Well actually my version is better. It is like an installer and it install all needed files, so you don't need to have the game. And when you open the "start dlc exe" you can choose the maps in a menu and it loads them automatically in the game. But you still fall down forever if you fall. It's good i don't fall usually . But unfortunately i think there is supposed to be ending in the maps but it doesen't work for some reason.
It doesn't work because the levels are not normal story levels, as it expects in the method you run them. I had an idea back when I had it installed to try and replace on of the Trial levels with the ones from the DLC, but didn't get to it, and later uninstalled the game.
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. But unfortunately i think there is supposed to be ending in the maps but it doesen't work for some reason. 
