Defictionalization: Rejoice, fellow siscons!! Siscalypse the naked-loli fighting game featured in the series is gonna be made into an actual game in Real Life; albeit a 2D fighting game rather than a 3D one.
In several episodes a screen can be seen playing an anime in the background, and yes, the studio animated clips for each and every one of them, as equally full and detailed as Oreimo! The animation actually looks a little bit better than the rest of the anime, and there are some really nice special effects you wouldn't expect from a Rom Com anime.
Also, all the Show Within a Show anime series seem to have fully developed casts, backstories, and plots which show up in the DVD animated commentaries. It's surreal.
Playing Against Type: After a decade of playing emotionally-reserved and dead-serious warriors like Kanu Unchou of Ikki Tousen, Hitomi Nabatame finally sinks her teeth into a bright and upbeat role like Saori.
Reality Subtext: The author of Ore Imo turned down the first offer to have the Light Novel animated. This experience seems to have been the basis for the anime original plot of episode 8.