If Abdul is with you, a man in merchant garb will appear on the southeast side of town. Talk to him for a short event and FP with Abdul. If your bad karma is 5 or above, you can choose whether or not to exchange pleasantries with Abdul's friend - if you don't, you'll gain no FP with Abdul.
Requirements: Iggy is in the party
Talk to the man by a camel in the east part of town to trigger this event. He'll ask whether or not Iggy is your pet. Answer no - you're friends - to raise Iggy's FP. Answer yes and nothing will happen, but Iggy will bite you. Additionally, if your bad karma is 5 or above, you can answer that he's livestock, which will lower his FP by 2.
Requirements: Joseph is in the party
Examine the bookshelf in the record shop in the south part of town with Joseph for a short event where he talks about his taste in movies. Afterwards, his FP will go up.
Making a Call
Requirements: Jotaro is in the party
If you talk to the concierge at the hotel with Jotaro in the party, he'll ask to use their phone. Afterwards, his FP will go up
After you leave Kom Ombo, you'll start the Anubis event, which has 5 consecutive battles:
Polnareff vs. Chaka
Polnareff vs. Khan
Jotaro & Protag vs. Khan
Jotaro & Protag vs. Polnareff
Jotaro & Protag vs. Polnareff (Twin Blades)
All of these battles can be ended with the Brainstorm command. However, if you plan to defeat them without it, make sure you've stocked up before leaving town.
Before fighting Twin Blades Polnareff, you'll get some extra dialogue and +1FP with Jotaro if your FP with Polnareff is 13 or above. If it's below 13 and your bad karma is 6 or above, you can choose to fight Polnareff with intent to kill, which will raise Jotaro's FP by 1 and lower Polnareff's FP by 2.
If you defeat Twin Blades Polnareff without using Brainstorm, Polnareff will gain +1FP and learn Zantetsuken, a powerful skill that ignores defense. Jotaro's FP will also go up by 3.
There's a crowded bar in the southeast part of town. Talk to the people inside, and eventually, objects will start to fly at you - touching them will start a battle with Shocking Blue. Defeat it, and you'll be locked inside the bar, and the enemy will keep attacking. Try to leave after defeating it at least 5 times to start an event and a battle with Mariska. Defeat her in a one-on-one fight for +3FP with whoever is in your party, or two-on-one for +1FP. You'll also get different dialogue depending on who's with you - for example, if you fight her with Abdul, she'll remark that he's just her type.
Same as the ones you've encountered before, but now, they only appear in groups of 1.
Range: L. Random encounter on the map. Appears in a group of 2. Short-range attacks have no effect. The Snipe attack can sometimes inflict 1HKO. They will sometimes flee the battle before you can defeat them.
Attacks with Bind, Tsunami, and Hydro Pump. Will always get a pre-emptive strike.
OPTIONAL BOSS: Mariska
Range: M. Attacks by throwing bottles and knives, and also swinging lamps when you fight her one on one. Defeating the Stand will not defeat Mariska.
OPTIONAL BOSS: Shocking Blue
Secret Book Vol. 7
Range: S. Can buff both it and Mariska's stats. Will try to use Bind if fighting it one on one. Inflict Berserk or Confuse on it before it gets the chance.
Is hidden at the start of the battle. When he hides, he'll recover, so unleash all your attacks on his as soon as he reappears.
BOSS: Khan the Barber
S: Experience Tablet
M: Foo Fightalin
Starts out at range S, but will get further away and recover when his HP gets low. Uses "I've memorized it!" to buff himself. Has a much higher attack and hit rate than Chaka.
Range: S. End the battle with Plan if you want to save your strength for Twin Blades Polnareff and don't mind missing out on the EXP. Poison, BlowBack, Surge, and Bleeding work well against him - you can use Jotaro's Berserk Ora to inflict BlowBack and Rifle Ammo to inflict Bleeding. If you have trouble with this fight, don't even think about trying to beat the boss after it without Brainstorm.
BOSS: Polnareff (Twin Blades)
Badge of Honor
Range: S. Way tougher than Khan and Chaka combined. Just like the last battle, Poison, BlowBack, Surge, Bleeding, and also Dizzy work well. It's recommended that you buff here - the fake medicine from Calcutta works well for this, and the Pyramid Model is a fine replacement if you don't havy any. You can debuff him, but unless you have Sonic Youth's Recital, you probably shouldn't bother. Keep Your Distance tactics will make the fight a bit easier.