Great test chamber! It's a lot more varied than many other test chambers. It's like there are a few test chambers insideone big test chamber, which is really nice. I only have 2 criticisms: 1) The image is a litte revealing, it would give away the first test chamber. I'll create an image for the thumbnail when I get home. 2) I found a way to disable the sentries without using the blue gel, I just put the cube over the hard light bridge and hit them all with it, I didn't even use the blue gel at all.

But other than that a great test chamber. 9/10