This video, called Round 6, is for a video game that doesn't exist. It's simply a concept piece, done by an animation studio, with the aim of making "a high quality video game cinematic styled trailer".
The non-game is called Fragball, and as you can see, is a mix between extreme sports like Speedball and, well, anything that involves shooting monsters.
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Whether it's parody or a sincere attempt at a portfolio piece, I'm not sure, but I think it works well on either level, the former for its brown/green tones and violence, the latter for the stylish lighting and animation.
Round 6 [Snowball Studios, via 4 Color Rebellion]