This portal mod has you playing through the events of portal, But glados is busy with another subject. So, instead you are testing with a core named Eric who seems a bit too enthusiastic to test. (Features: New Chambers, New Testing Elements, New Characters. and Much more!)
a basic demonstration of the cube catcher
Interesting concept - you could, instead of dissolving the box, freeze the box inside the catchers grip. I don't have Hammer on the ready to show what I mean, but hopefully you get the idea.
Yeah, the via this imput is: DisableMotion
Uh, actually, the cube catcher icon sign says "the cube going into the pellet catcher to activate it(like a cube catcher)" I will show you how it works with images. You need to use the pellet catcher's body instead for this.