Xbox LIVE’s Games on Demand update is today imbued with the powers of EA Sports’ boxing title, Fight Night Round 4, while North American Xbox LIVE users will be able to get their hands on a snowmobile racing game called Ski-Doo Snowmobile Challenge.

Finally!

Discover what these games are all about, and what they look like in motion, with official descriptions and a collection of videos and trailers below:

Fight Night Round 4

“Fight Night Round 4 is the most authentic simulation of the sweet science of boxing.”

Not much of an official description, eh? Well, you could always read El33tonline’s very own review of Fight Night Round 4, and peruse our previous coverage of the game. How’s that?

Also, you can watch a few of the collected videos of EA Sport’s boxing title below:

Fight Night Round 4 - Awards Trailer

Fight Night Round 4 - Physics Engine Trailer

Fight Night Round 4 - Graphics Sizzle

Ski-Doo Snowmobile Challenge

“Ski-Doo Snowmobile Challenge is an authentic snow cross experience with officially licensed Ski-Doo snowmobiles.”

Hmm, fantastic. Let’s check out what the game looks like in motion:

Ski-Doo Snowmobile Challenge Debut Trailer

Ski-Doo Snowmobile Challenge - Launch Trailer

Find out pricing for these games in your region over here.