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Frontyard

Nothing special, some Hammer experiment. Special thanks to Skyferret and GreekAvian.

Hints:
1.Laser needs some thinking.
2.Get a cube out first.

I will provide step-by-step walkthrough sooner than I expected, but Bullfrog already uploaded the intended gameplay and Sheepdog has an alternate solution that I did not know existed. I just uploaded a newer version that ripped out Aperture Tag ending logic. A possible AT-related issue I was informed about so I uploaded an assumed fix since I cannot replicate the issue myself; the game is entirely the same only few post-Exit changes.

Walkthrough:
1.Drop cubes by simply portal a laser to the trigger/s.
2.Reposition Green Cube to do Fast Portal (the thing that the Co-op promotion was doing).
3.Come out, stand on button and actually do the thing; note if you are as dexterous with a mouse as Sheepdog you can essentially combine all steps up to this point in one go.
4.Have Green sit on the button while you get Red.
5.Have Red swap place with Green. Respawn Green
6.Use Green to bend laser and shoot Green trigger without respawn, about 20 degree is optimal.
7.Portal the source of laser, go in next to Exit, portal the laser out to hit Red respawn, solved.