What he actually did is known as Circuit-Bending. Basically he cut off the outer coating (skinned it alive) then fiddled with the internal circuits. The result made it sound like E.T was being brutally murdered while his screams were muffled. This combined with Ashen's speech about how he is going to make it better causes it to be nightmare fuel. Now, imagine E.T was sentient...
It gets worse. After the traditional ASHENS.COM at the end of the video we see E.T.'s rubber face pinned to a corkboard.
The Stock Clearance Special, when Fridge Horror hit Ashens on how the "Cutants" are, in Polly Pocket's world, alive and sentient. He gets upset by the idea, and he decides to make a horror short to illustrate just how scary things would be if Polly Pocket and her group of mad scientists decide to move on to humans and were to come after your girlfriend...warning Contains unhealthy high doses of Uncanny Valley And Body Horror
You wouldn't expect a semi-Christmas related advent calender to have anything terrifying in it, right? You'd be wrong.
Hell, the grass masks in general. From assimilating both deer to hanging Santa from the tree by his sleigh.
One of his earliest videos in the PO Pstation Saga is a review of one of the games that frequently comes preinstalled on the rotten little pieces of trash, Submarine Invasion. The review itself is significantly shorter than the run time of the video, but Stuart managed to fill the leftover time... by using somewhat grainy grayscale video footage of someone in a white lab coat and what appears to be a welder's face mask fiddling with a machine that rattles off lists of numbers. That's all the extra footage consists of, and it's deeply unsettling.
His Big "Shut Up!" to the iPhone 5G was rather convincing, to the point that it does paint an ugly picture about what he could be like when set off.