TheGamer published a guide identifying challenging horse girl racers in Umamusume: Pretty Derby that are labeled “Rookie Killers” and should only be attempted by veteran players.
The article suggests these specific racers present significantly higher difficulty levels compared to beginner-friendly options.
The guide aims to help experienced players find harder challenges once they’ve mastered the game’s basic mechanics.
Umamusume: Pretty Derby is a popular Japanese mobile game that combines horse racing with anime-style characters, requiring strategic training and racing management skills from players.
