Sonic creator's Tenchu PSP level

Several major Japanese game developers including Sonic creator Yuji Naka are designing downloadable mission content for PSP title Tenchu: Shinobi Taizen, according to reports stemming from Japanese games mag Famitsu.

Write-ups of the Famitsu piece claim that developer From Software will make details of where to download four extra missions available to people who pre-order the game, which is due out in Japan on 28th July.

Naka-san's mission will be made available on the day of the game's release, while offerings from Kouichi Nakamura (Chunsoft), Kouji Okada (Gaia) and Akihiro Hino (Level-5, most recently responsible for Dragon Quest VIII) will follow throughout August.

Tenchu: Shinobi Taizen will feature a mission editor that lets gamers create their own scenarios and save them to Memory Stick. This presumably is the tool Naka-san and cohorts will be using.

Tenchu PSP will almost certainly involve sneaking around brutally killing people as the other Tenchu games have done. We've often likened Tenchu's build-up of tension followed by fountain-of-gore release to the process of trying to hit targets on a treadmill or rowing machine at the gym, and, privately, to other recreational activities that we'd get told off for writing about in the Internet.

We'll, uh, bring you more on Tenchu as it nears completion.