Test Subject Green is a puzzle-platform game released May 10th, 2011. The game is the sequel to Test Subject Blue released on March 2nd of the same year. The gameplay is similar to its predecessor, except Xeno Industries is attacked by Doctor Nastidious, who manages to escape with the scientist's enzyme, Blue. This game was made a distributable game on May 30th, 2012. This game, along with all the currently released installments of the Test Subject series, were made Nitrome Touchy compatible on August 16th 2013.