So yeah, that was pretty cool trailer. It took them about a year and a half to make and I have to say their final product is really cool. When it came out it took the internet by storm. Now looking at the character designs and models, they are pretty nice. I actually really like the changes they made to some of the character. They took away a lot of the cuteness and made it work for the feel that they were going for. How out of place would it be if the Pokémon were adorably murdering each other. I think it would've been a little disconcerting. I thought the texturing was also pretty interesting and unique. Each of the Pokémon retained the look that they should have in a 3-D world (i.e. Pikachu is fuzzy, Geodude is hard, Ghastly is... gassy..., and Jigglypuff looks jiggly). Were there some problems with the overall animation. Yeah a little, there were some flaws but I think overall the two guys did a great job on the models. If you want to read more about this trailer, there is an interview with the creators here.