Developed by Augusto Boal , this is a series of imaginative exercises which promote awareness of one`s social situation and it`s limitations, individual attitudes, and even how we are all bound by tradition.
Theater of the Oppressed is improvisational, in the sense that tries to play non-scripted theater, with actors and non-actors, in which he explores how oppression appears in our societies, and how we might fight it.
In his book Games for Actors and Non-actors more than a hundred excellent exercises are described (his `arsenal` of the Theater of the Oppressed) which are equally valuable as tools/games for Improv.
Success/failure is a side product of the approval/disapproval syndrome. Trying to succeed or giving in to failure drains us --- Viola Spolin