Yes, Yanish - how 4kids deal with this episode will be interesting..
Aporia finished with Despair upon his defeat to Yusei, so now he wants Jack / Rua / Ruka to feel the Despair he felt.
(Why in the duel the names appear as Lua and Luka, I dont know.)
He also felt no pain, as all his emotion had gone and emotion was a condition of the Human Heart. He is all machine, no longer human. (Almost Borg - of Star Trek origin.)
The team have to beat him or DIE :O - but it might well be left upto Rua to save the day. (There is hints at a new power being given to him.) (About time too, since he's the only non-signer in the team.)
Could u imagine the eventual humiliation for Aporia, defeat to a child!