As another week wends to its inevitable end, it's time to go through the top full-length features of the past week on big sister 'art and business of gaming' site Gamasutra, plus our GameCareerGuide features for the week.

Some of the notable things this time around include interviews with Sonic alumnus Naoto Ohshima and Heavy Rain co-creator Guillaume de Fondaumiere, as well as an interesting piece surveying gamers about microtransactions, a Splosion Man postmortem, a new Game Design Challenge, and various other reasonably intriguing pieces.

Some people got it:

Out of the Blue: Naoto Ohshima Speaks
"Sonic the Hedgehog character designer Naoto Ohshima expounds upon the early days of Sega's mascot, recollects design choices in the Saturn game Nights, and explains why it's important to make games that are 'just a little new.'"

What Gamers Think About Microtransactions
"As game developers grapple with making microtransactions more appealing to Western gamers, Daniel Kromand interviews a group of gamers to gauge the effectiveness -- and ineffectiveness -- of current microtransaction practices."

Postmortem: Twisted Pixel's Splosion Man
"Twisted Pixel, the Austin, Tex.-based studio behind The Maw, explains what went right and what went wrong with the fast-paced development of the XBLA game, Splosion Man."

Shattering The Boundaries: Sidhe's Big User Testing Gains
"Gareth Griffiths, user experience expert at Sidhe Interactive, explains how the studio broke down, tested, and rebuilt the brick-breaking genre with the PSN game Shatter."

Heavy Dreams: Pushing Interactive Narrative
"Quantic Dream's ambitious upcoming PS3 title, Heavy Rain, looks to change the definition of "interactive movie." The studio's co-CEO Guillaume de Fondaumiere explains how he thinks Heavy Rain can show people that games can be truly meaningful."

GCG: Adaptive Difficulty
"Brunel University masters student David McClure here investigates the concept of adaptive difficulty -- games that adjust their challenge as players engage with them."

GCG: Game Design Challenge: The New Sound
"The music genre is slowly going down in popularity. What might bring it back but innovation? Marry your exciting and innovative gameplay concept to music in our latest design challenge!"

GCG: Results from Game Design Challenge: Sidekick
"Mario has Luigi and Sonic has Tails, but can other characters use sidekicks? Our latest competition invited entrants to design a sidekick for popular gaming heroes -- and here are the results."