Ook

Fight

• Skip the cutscene to start the fight. Doing this does not prevent the deku serpents from spawning on the ground (unlike on SD).
• Roll towards the fight area as soon as possible so that Ook doesn't waste time taunting you.
• Ook will jump from pillar to pillar. He will jump at least twice, after which he can jump again, throw the boomerang, or taunt the player and then jump as you approach. (More specifically, he will pick a random between 2 and 4 and have a 75% chance of stopping and a 25% chance of rolling a number between 2 and 4 again.)
• When Ook throws the boomerang, he can be knocked off the pillar by Link rolling into it.
• The fastest combo for both cycles is a jump attack quickspin (spin the control stick during the jump attack), then a stab.

Ook Crash

If you hit the pillar very late, Ook can fall off with the boomerang in his hand. Defeating him in this state causes the game to hard crash (damaging him is fine as long as you don't finish the fight).

Boomerang Softlock

If you buffer a sidehop and savewarp before getting the boomerang, you softlock yourself out of getting the boomerang.