Three of the best of last years xbox Live experience. For those unfamiliar with the service the content on xbox live is usually simpler, lower budget and purer games for lower prices, however, as these games all prove, lower price does not mean lower in fun or punch.
Trials HD is by far one of the best peices on the disc, usually available for 1200 MSP (about nine GBP) on the network, this 2.5D physics biking and time trial game is an absolute pleasure to play, focusing on honing skills and giving some great long term challenges, the difficulty curve making the experience a lot more troubling towards the end but the persuit of honing ones skills is a truly rewarding experience for those wishing to see it through.
Splosion Man is an innovative puzzle platformer usually available for between 800-1200msp depending on where and when you buy it. With the sequel now available it will most likely drop in price on the service but it's still a bargain here.
A typically trying too hard zany platformer with an equally wacky cast of characters might put some off, however at it's core this game is a true skill challenge with 50 multiplayer and 50 singleplayer maps, leaderboard connectivity and a unique approach. At it's core I'd say Donkey Kong Country meets Portal meets an unfunny uncle who smells a little odd and still laughs at the chuckle brothers, but it's well worth a go.
And Limbo, only played the demo, seemed okay, have heard good things, reminded me of braid.
If you can get the service, have a go at the demo's and see if this is worth it over the 2100 mspoints available for the same price.
If you'r an Xbox Live Arcade Newbie who's had concerns about making that first purchase then this is a very safe introduction to the service and style of games on offer, the three games on here all considered fairly essential.
And if your living under the sea and can't get xbox live connectivity, then this is definitely a safe bet for a few weekends worth of entertaining distractions at a great price.