Twenty20 double century

Cricinfo are reporting that a batsmen in Singapore club cricket has hit the world's first Twenty20 double century. Now, of course the level of competition in Singapore isn't great, but when you consider this guy scored the runs off just over 50 balls, that's quite an amazing feat. I don't think I could do that against my brother in the backyard, let alone in match conditions. Short of the opposition slowly lobbing full tosses at him and kicking the ball to the boundary for him in the field, I don't see how he managed to do it.