Metroid: Other M's polarising plot was entirely the work of Nintendo's Yoshio Sakamoto, Team Ninja has stated.
Team Ninja's Yosuke Hayashi, speaking with G4TV, singled out Sakamoto as being entirely responsible for the game's widely-criticised story.
"We definitely worked with them on the project, but that was all him," Hayashi said, adding that forthcoming title Ninja Gaiden 3 would be "different in a lot of ways".
"There are definitely things we learned from Other M by working with Mr. Sakamoto and with Nintendo," Hayashi concluded.
Previous comments from Sakamoto, Nintendo's resident internal Metroid director, suggested the entire project was a collaborative effort.
Hayashi and Sakamoto both received director credits for the project.
Chris Donlan rated Metroid: Other M 8/10, criticising its "heavy-handed exposition, and that inane rambling from Samus".
"The clumsiness of Other M's scene-setting and characterisation eventually erodes a little of the texture of the rest of the Metroid universe," he wrote.