According to the cover note of the eighth volume, Crimson's web manga "Aoi Sekai no Chuushin de
" was announced to get an anime adaptation.
"Aoi Sekai no Chuushin de" manga official website
Director: Yanagisawa Tetsuya
Character Design: Fujii Maki
Gear: Okamoto Nobuhiko
All the characters are parodies of Nintendo or Sega games such as Sonic the Hedgehog, Super Mario Bros., The Legend of Zelda etc. Segua Kingdom has been losing the war against Ninterdo Empire but the tables are turned by the appearance of a boy called Gear (a parody of Sonic the Hedgehog).
Source: Scan of the cover note
Aoi Sekai no Chuushin de