Nene: In Wei Story - Stage X3, defeat the two Nene clones within 4 mi***es after their
appearances (free Goemon to start this event)

kill all spy captains and then use fuma(level 99) to kill clones in 4 mins

To get Nene... Beat all the officers guarding Goemon, after beating them, free Goemon...
After freeing Goemon, follow him till all Spy Captains appear on where he will yell...
Beat all the Spy Captains, after beating them, Nene's clones will arrive after Nene's
dialog, it would be easier if you ride a horse, Nene's clones will appear at the
North-Western part and at the South-Eastern part, if you defeat them within 4 mi***es, go
and do all things you need to go to Nene, then defeat Nene, and she will join you. (Also,
to let this success, Goemon must survive... and only 1P must defeat the clones and guard
officers, but you can still play this on 2P, but 1P must do all the needed ones) [Plus...
This is in Wei's Story... one of the Gaidens]