GoGoAnime for your Android devices from  

Angel Beats! Specials Description:

Plot Summary: Unaired episode of Angel Beats! included in the seventh volume of the Blu-ray and DVD, and new episode included in the Blu-ray Box. Episode 1: Yuri initiates Operation High Tension Syndrome so they can meet GOD. Takes place between episodes 5 and 6 of the main series. Episode 2: Hell's Kitchen.
Angel Beats! Specials Episodes: