Gintoki and Sakamoto reveal themselves and attack the Double Dragon generals.  Meanwhile, Elizabeth has launched in the Gunsam to battle Dark Vader in a duel to the death.  Elizabeth is helpless against Dark Vader.  That is when Katsura arrives to protect his friend's back!
but I didn't think we'd actually 
have to fight the planet.
pero no pensé que terminaríamos 
peleando contra el mismo planeta.
mas não estava esperando 
lutar contra ele.