Throughout Sotenbori and The Castle, you'll find various collectibles and valuable items. These often serve as currency for specific shops, unlock new content, or are simply for completionists. Look out for Locker Keys, which unlock storage lockers containing useful items. Some collectibles are tied to specific side quests or mini-games. Always keep an eye out for sparkling objects on the ground.

- Locker Keys: Unlock lockers with various rewards.
- Stray Cats: Part of a specific side quest, rewards Akame Points.
- Casino Chips: Used for gambling mini-games.
- Gold Plates: High-value items that can be sold for significant money.