Hyperdouraku was at the Japan Steel Challenge 2014 which was held last 13 September 2014 in Tokyo. Mach Tatsuya Sakai (World Steel Challenge 2004 Champion) and Mac Sakaiko are three-peat winners in this tournament which is the use of airsoft pistols to go through the various stages. You'll notice that they have a setup to ensure more consistency in power.

It seems to be an airsoft practical shooting competition month this October as three major events happened in different parts of the world. This weekend saw the Airsoft Surgeon Practical Shooting European Championship (UK) and Taiwan Practical Shooting Association (TPSA) Level 3 Action Air Match (Taiwan). A week before that the Japanese Steel Challenge 2013 happened in Tokyo last 13 October where Mach Sakai, the 2004 Steel Challenge Champion in the US, won this year.