When the mechanicals' play has come to its tragic (or comical) end, what do they further offer to present to the Duke and his companions? act 5

At the end of the play both Bottom and Flute get up from where they are lying, supposedly dead, and offer to perform an epilogue or a bergamask (a type of dance). Theseus quickly intervenes and tells them they need no epilogue, but rather should only perform the dance, which they do.