Weapon: Metal Knuckles - Fire, Elemental, Skill Master, Parry, HP Up, Healing
Armor: Chain Bangle - Skill Master, ATB Stagger, Luck Up, Luck Up
Accessory: Fury Ring
Cloud and Aerith: Enfeeblement Ring
Strategy:
Shiva: Spaced out attacks so that I can react and guard/ parry her Icicle Impact. All other moves can be dodged/ parried. Build ATB until Rise and Fall is available. Before landing a second Firaga, make sure to have two ATB charges to that the remaining charge can be used for Focused Strike loops while building Stagger. As soon as Shiva is staggered, immediately use two True Strikes behind her, followed by Rise and Fall, Omnistrike, and looping with Whirling Uppercut and Divekick back to back.
Fat Chocobo: Make sure to build up ATB Charges while activating Unbridled Strength and Chi Trap so that when Fat Chocobo is staggered, the next True Strike can be used while activating Skill Master's ATB refund. Continue the Stagger combo until Fat Chocobo is defeated.
Leviathan: Two ways to defeat Leviathan and both involve finishing him off before Tidal Wave is activated. Apply enough damage through Divekicks to pressure twice or to receive enough damage to activate Tifa's Limit Break and end the round. Either way, I recommend to not lock onto Leviathan as it can be difficult to have a decent camera angle. Also to use Unbridled Strength and Cura/ Curaga when he's using Spinning Dive to activate Skill Master. It is better to block Tail Whip than to parry it because even if a parry occurs, you still have to wait until Leviathan reemerges from the ground.
Bahamut: Reading Bahamut's movements and reacting to his attacks is the best way to fight, as receiving a single attack can potentially put you at a disadvantage. Damage him as much to a little over half of his HP, otherwise he will summon Ifrit. Block and parry as much as possible in order to charge Tifa's Limit Break. Umbral Strikes is an unblockable move so it's best to use parry to dodge to the left, move to the right for a second and parry to the right to fully dodge the second strike. After Bahamut goes to "Three" he will use Umbral Frenzy, use this to your advantage as it's a good way to charge Tifa's Limit Break if you already haven't. I played it safe by damaging him further during his "Two" count and soon as he's out of that pressure, to use Dolphin Flurry to prevent him from summoning Ifrit (if he already entered the animation, then it's too late).
Pride and Joy Prototype: Dodge the incoming laser by circling around the bot, and damage his backside until his Right and Left Legs are exposed and switch occasionally so that Pride and Joy Prototype can be put into a stunlock for the entire round. I manually selected Divekick instead of through the shortcuts because I wasn't confident in locking onto the right leg with the right analog stick.
Thank you for watching, I hope to add more content for others to see.
BGM:
Metal Gear Rising Revengeance OST - A Stranger I Remain
Metal Gear Rising Revengeance OST - It has to Be this Way
Metal Gear Rising Revengeance OST - Collective Consciousness
Final Fantasy VII Remake OST - Victory Fanfare