The 'gigantic useless test' is what I was referring to, as it seems that is what is mostly published compared to 'good tests'

Oh, and I disagree with your statement that "anyone can make a huge test". It actually takes a lot of time and effort to make a good huge test as opposed to a gigantic useless empty space.

Pretty fun, though I should mention I'm a huge fan of the huge test. Anyway, you should probably be aware that a player can jump a 1-tile gap, so not finishing #6 or doing other things improperly might be possible exploits. Also, you made it possible to take the cube out of 2 using portals..which might be an exploit or a way the player can break the level to make it unbeatable, I'm not sure which because I wanted to play the level how it was intended myself.