Speed-running charity campaign Summer Games Done Quick (SGDQ) has returned.

　　The annual event, which this summer is raising money for Doctors Without Borders, began July 26 and runs through August 1. More than 150 expertly skilled gamers are taking part in the campaign, which runs for a continuous 160 hours live on Twitch from the Crowne Plaza hotel in Saint Paul, Minnesota.

　　Archived speedruns will be available through the Games Done Quick YouTube Channel.

　　For those unfamiliar, speedrunning is the process of playing through a game as quickly as possible. Speedruns are particularly fun and sometimes bewildering to watch because they require expert skill, lots of planning, and often the use of tricks.

　　Competitors will play more than 150 different games during the broadcast. For the first time ever, three of the top Super Mario 64 speed-runners--including current world record holder cheese05, will compete to collect stars and beat Bowser in record time. This event will be held on August 1.

　　You can see the full game schedule here.

　　SGDQ is the sister event to Awesome Games Done Quick. It alone raised $720,000 in 2014, but organizers are hoping to hit at least $1 million this year. So far, SGDQ has raised over $112,000, with an average donation of $36.57.

　　Viewers can donate to Doctors Without Borders through the Games Done Quick website. Everyone who contributes will be entered to win prizes including a PlayStation 4 and a New 3DS XL, among other things.

　　What's more, you can buy a special Games Done Quick tshirt, and three dollars of every sale will go to Doctors Without Borders. The charity delivers emergency medical and humanitarian aid to people impacted by conflict and natural disasters.