All of these chambers are originated from my MEGA CHALLENGING PUZZLE:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=79554507

I simply chopped them up, broke my mega puzzle into individual chambers, for those who:
1. want a more RELAXED experience in Portal 2;
2. want a quick test instead of a long run
3. want to train/do some trials before going to the real mega puzzle

Anyway, although they have been cut into individual chambers, it still preserves my original idea:
This series of test chambers I created, that each of them contains an individual theme.
They range from gels, light bridges, excursion funnels, faith plates...and more!!

You may:
1. Treat them as individual challenges
2. Treat them as individual themed-puzzles
3. Training/Trials to my mega puzzle
4. TEST YOURSELF XD

TIPS:
1. Cubes can be used to shield turret bullets, use them to clear the path wisely
2. You must not lose the second companion cube you obtain; if you do, you may get it back again; but if you cannot, GG, start over again
3. There are alternative ways to complete each chamber, instead of one.
4. Try to plan ahead, otherwise you may walk into a dead trap :)
5. REMEMBER: YOU HAVE CARRIED ONE CUBE INTO THE END-OF-THE-HALLWAY CHAMBER!! DON'T LOSE IT (1 + 1 = 2)

Some player regard that this test may be too big and get lost in this.
The point of this test is to connect a few chambers to solve the puzzle, like what is in here; and have an unique theme in each chamber.
**and of course, IT WAS NOT EASY, I hope my players have fun when they think in each chambers (each theme);
There are so many easy, simple tests out there, and I INTENDED to make this one CHALLENGING; however if you can solve this puzzle without cheating, YOU WILL GAIN SATISFACTION.