It looks pleasant enough. Not sure it's encore material though, and it looks very straightforward. I doubt institutionalisation will be required.
The issue is - I laughed so hard I started crying. I just could not believe what this guy did to angry birds. And as I looked at it more closely, I realized the tune just lent itself to this....
Ahh.. yet another popular culture refernce goes over my head.
Never heard of angry birds before, but this is quite delightful. :-)