Start with a test chamber then on to a large BTS are. After that, some more test chambers. But a tricky bit of bounce gel manipulation at the end. You can also go to the Collection...

Keep on going. Watch out for those bottomless pits. Get up through the vertical shaft and you're almost there. You can also go to the Collection...

The test chambers are seriously off their rails but you'll pull through. You'll find a bi-directional faith plate that switches between cube and player to function. But how to get the cube to where you need it is devilishly hidden. Or so I think it is. You...

Speed gel. Cubes, buttons and tractor beams and you'll get past the bottomless pits. Carry on to more test chambers. You can also go to the Collection...

It's a long way up through the infrastructure and pipes. But will you defeat the platform challenge when you get there? But if you make it through what comes after that, have fun with bounce gel. You can also go to the Collection...

Good, you made it this far. Just a few more chambers and you'll finally reach the elevator. You can also go to the Collection...