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Building Blocks!

solved it with an infinite fling and a portal on the wall opposite to the exit. anyway, keep trying :)

Meh. Cube stacking sucks, dude.

Hey guys, don't be so mean! This test chamber is better than the one Wheatley made!
(well, apart from that walking on the windowframe thing. that really sucks.)

Yeah i also used the window to walk across... and i was like "Thank the creator for that!" (did you see what i did there...?) Anyway - this is a horrible map dude - sorry. I am really sorry to say it, because it's never nice to hear, but the commentors are spot-on. Cube-stacking is not fun and was never supposed to any major part of the game. Besides - it reminds me of Home Alone 2 when Marvin wanted to climb out of the basement - wait - can anyone here remember that? Never mind... Please remove this. Please?

Cube stacking is so godamn boring. Especialy when the physics of it all makes it to where cube does not stay still. Also, I seen another map that did this better (cube stacking).

dude, cube stacking is not fun nor challenging...

Oh crap, I didn't know that. What a cheater! haha

easy to cheat. just jump to window sill on right and walk across. it doesn't look like it'll work but it does.