This is probably the boss that took me the most attempts till now. I've used multiple weapons but I noticed in one of my attempts that if I used the R2 of the Royal Greatsword (I'm sure any other greatsword that shares this R2 will work) in a certain position (it's not precise), the rats... just miss even if it looks like their attacks connected. Bizarre, but I'm not complaining.
As for the "rat" boss, its really about dodging the charge attack, which is harder than it looks as it lingers.
List till now:
1- The Last Giant (Broken Thief Sword +0)
2- The Pursuer (Watchdragon Parma +0)
3- Dragonrider (Royal Kite Shield +0)
4- Skeleton Lords (Club +5)
5- Covetous Demon (Thief Dagger +0)
6- Mytha, the Baneful Queen (Fire Longsword +2)
7- Flexile Sentry (Large Leather Shield +0)
8- The Rotten (Mail Breaker +3)
9- Old Iron King (Puzzling Stone Sword +0)
10- Scorpioness Najka (Pate's Spear +0)
11- Prowling Magus and Congregation (Great Machete +0)
12- The Duke's Dear Freja (Parrying Dagger +4)
13- Ruin Sentinels (Grand Spirit Tree Shield +0)
14- The Lost Sinner (Infantry Axe +0)
15- Aava, the King's Pet (Fire Hand Axe +10)
16- Twin Dragonriders (Caestus +8)
17- Old Dragonslayer (Shortsword +0)
18- Royal Rat Vanguard (Possessed Armor Sword +6)
19- Royal Rat Authority (Royal Greatsword +4)
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