Like a Dragon: Ishin! - Ultimate Challenges

Ultimate Challenge is unlocked after completing the game. If you remember Yakuza 0, you can enter these from the main menu. Each is a challenge on it's own, but it shouldn't be a big challenge. There are 30 challenges.

Combat Challenges

#1 - Defeat all enemies
#2 - Defeat all enemies
#3- Defeat all enemies using only Brawler style
#4 - Defeat all enemies using only Swordsman style
#5 - Defeat all enemies using only Gunman style
#6 - Defeat all enemies using only Wild Dancer style
#7 - Defeat all enemies within 15 seconds
#8 - Defeat all enemies within the time limit 
#9 - Escape from Kochi Castle within the time limit
#10 - Defeat all enemies within the time limit

Skill Challenges

#1 - Defeat all enemies with heat actions, each must be unique
#2 - Defeat all enemies with special moves using R2
#3 - Destroy all scarecrows
#4 - Achieve a 99-hit combo 
#5 - Achieve Godly rank
#6 - Protect Akimoto 
#7 - Defeat 100 enemies using the cannon
#8 - Defeat the red, yellow, and blue ninja in that order
#9 - Defeat all enemies using only pick-up weapons
#10 - Defeat all enemies

Speed Challenges

#1 - Race to the Imperial Palace 
#2 - Evade the chickens and collect 10 eggs
#3 - Escape from the Shinsengumi
#4 - Reach the destination without being caught
#5 - Catch the Ultimate General

Ultimate Challenges

#1 - Defeat 2 bosses and 8 regular enemies
#2 - Defeat 2 bosses, 10 British Soldiers, and a bear
#3 - Defeat 3 bosses
#4 - Defeat 3 bosses
#5 - Defeat 8 bosses