User blog comment:PeaVZ108/The Portal Problem Quiz 1.0 Answers/@comment-30384301-20171011091839

NOTE: There is an error for the last bonus question: There are actually EIGHT games referenced. The eighth one is Kirby, because the Warp Star, an item in the Kirby series, is part of the puzzle when you have to shut down the pixel guns in Starcade's cell.