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Find the cubes

You're welcome!
http://gtm.steamproxy.vip/profiles/76561198042478426/myworkshopfiles?appid=620

It worked! Thank you so much!

I see; Notice the lazer is attatched to the receiver - it should not be. The receiver should only be attatched to the red barier. Hope that helps

Thank you for your concern. But my main problem is on the top. I can't seem to find a way for a player to use the laser to get out with the cube without using the three Reflection Cubes to complete the test and not gather the others. And another problem up there. When I manage to get the Laser Catcher activated. It glitches and turns off and on over and over. But still does not allow you to leave the area. Please help. Thank you.

That can be a real exploit which it was here. I just used the gel to get out.
The best advice I can give for any test is be careful of portable surfaces. (You did good here because there are so few and the more you have the greater chance for exploitation) Also just to play the test using the most expeditious way to get out. (What is the minimum needed to get out and can you do that and skip using an element in the test. If so - exploit.
I did not go above anywhere but by the picture and loolking around afterward, there are too many blocks here ie., unneeded stuff. Thanks