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!
We could kill the Earthlings and 
make their planet our new home,
Podríamos matar a los Terrícolas y tomar su planeta como nuestro hogar,
Poderíamos matar os terráqueos e 
tomar o planeta deles como nosso lar