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Gravitron 04: Opening

Just a comment about the reverse switch on the exit door. This is not unique to this map. Many others employ the same logic for many things. Maybe this was not used in the orginal portal levels, but once you encounter it in the community levels, a whole new logical solution is learned for future maps.

Nice map, unique concept! A little glitchy. I was able to "levitate" the sphere back into the sphere dispenser, trapping 2 spheres and allowing none to fall. Had F7 to restore.

Took a while to figure out the exit door strategy but I finally got it. Interesting concept.

Liked this one best -- less frustrating than the other levels, but that's more due to my skill than yours. Thanks!

In thousands of other chambers, a lit-up antline with a check mark means the objective is achieved. In this chamber, lit up antlines indicated the same thinfg for most situations, except the exit door. The exit door LOOKS ok, but won't open until you go upstairs and push the cube off the button. So it's a door that the cube/button is keeping CLOSED instead of a button that opens it.
That's counter-intuitive to the way everythign else in the game, and even in this chamber, work. In my opinion, that's poor design and earned it a downvote.

I've just spent 10 minutes throwing the edgeless cube around trying to get it up and into the cage area while standing on the button to keep the grid off. Very irritating, unless I'm missing some less random way to get it up there.

how the crap do you do this

you CAN stand on the sphere.

Nice work!
I finished it, u use the gun, lol
Check out some of my work: Loco Chambers

never mind