Stallion83 holds the Guinness World Record for the highest gamerscore in the world, and he's just reached 500,000 gamerscore points. Think you can catch up?

After a day filled with Xbox 360 and Xbox Live Arcade games, Stallion83 finally hit the 500,000 gamerscore point mark by scoring a 20 point achievement in episode 4 of Telltale's Wallace & Gromit series of downloadable adventure games. Achievement unlocked: halfway to his 1,000,000 point goal.

Over at the 1 Million Gamerscore Blog you can read a full account of Stallion83's day, from "7:00AM — Miss Mittens woke me up by meowing her face off. She better make the coffee today," to "3:38PM — Video posted."

Will he rest on his laurels, or continue the good fight? As I write this, he's online playing Karaoke Revolution. What a trooper.

500,000 Gamerscore [1 Million Gamerscore - Thanks Seto!]