Extra episodes of To LOVE-Ru Darkness 2nd bundled with the seventh Blu-ray and DVD volume.

Six short Special Broadcasts (omake) were produced and aired after selected episodes. They lasted around five minutes and followed the general style of the main anime, although the characters are drawn as chibis. (Source: Wikipedia)

This is a special to To Heart: Remember My Memories, which includes fighting scenes between all the female characters.

Following her graduation from middle school, Konomi Yuzuhara enters the same high school as Takaaki Kono, her childhood friend. As the new school year begins, they meet their childhood friend Tamaki Kosaka, as well as many new accquaintances. Unbeknownst to the group, their encounters with each other will soon lead to many memorable adventures. (Source: ANN)