Haganai: I Don't Have Many Friends - Specials
1 - Black Hotpot Gives Girls a Bad Smell
Air Date: September 22, 2011
11 minute OVA bundled with the limited edition of volume 7 of the light novel.
2 - A Round-Robin Story's Ending Is Way Extreme
Air Date: September 26, 2012
Feeling they don't have much to do today, Kodaka suggests everyone participate in a novel relay, in which everyone takes turns writing out a novel with Kodaka as the protagonist. Naturally, things don't go very well as each member's contribution leads to the story becoming weirder and weirder.
3 - Haganai Next Episode 12 Video Commentary
Air Date: August 27, 2013
Video Commentary for Episode 12 of the second season with the English Voice Actors
4 - Black Dragon: The Cries of the Damned
Air Date: August 27, 2013
Audio Drama with uncut audio from the Roller Coaster Ride.