Yeah, he's signing a song explaining each of the fingers, and in the video you can tell he's trying his best not to laugh when he gets to the middle finger
i have ten tabs open one is the roosterteeth podcast on the main website and a lets play in another.
not to mention the porn and doctor who related tabs
No, he did it.
The "upper left corner is still blue" is just him over shooting the left side a little. You can see the cube tilts to its side because it's uneven, but the yellow is full, and the blue is full, you just see the odd angle and think that blue is yellow.
He still solved it.