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Portal 2 Hints
How can I get past all these up-and-down masher things?
1 of 6: Don't even try to run under them. There's no way to get past them that way.
2 of 6: You also can't jump over the walkway's railing, so you'll need to portal your way past the mashers.
3 of 6: There are lots of portal-friendly surfaces inside the control room, so put an orange portal on any of them.
4 of 6: Look past the mashers to see that the opposite wall is also portal-friendly.
5 of 6: When the mashers are all up, you can fire a blue portal onto that wall.
6 of 6: NOTE: Since the new conversion gel is all about making non-portal-friendly surfaces portal-friendly, you could put your blue portal onto any of the surfaces that the white gel got sprayed onto.
