You want to help a worthy cause like Doctors Without Borders, don’t you? And you love seeing great games like Okami HD, Metal Gear Solid and Dark Souls being finished in record-beating time, right?

Then you should watch the Summer Games Done Quick streaming marathon from Speed Demos Archive in the stream above. Some of today’s best speed-runners are tackling dozens of ridiculously difficult games over the next four days. All you need to do is sit back, be astounded and, if you’re so inclined, donate some cash to a deserving charity. Who knows, you might see some new world records get set, too.