BOSS: Iago | Kingdom Hearts: Recoded
Jafar is now a genie. But the real enemy is Iago. You need to take him out to get the lamp back and end it all. Keep moving to avoid Jafar's attacks and simply work your way around taking command attacks on Iago as you can. Bandits will be added to the mix near the end and just keep the pressure on Iago. In the second stage they will add blocks and Iago will fly up high. Your best bet is to simply use Thuder to hit him from below instead of trying to climb the Bloxes.
This video is from our unofficial game guide. You can view the full guide here