Opal Flutterfin locations in Hello Kitty Island Adventure
There's a surprising amount of fish to catch in Hello Kitty Island Adventure, but the Opal Flutterfin is by far one of the more challenging to locate. There are two places across Friendship Island where these fish predominantly spawn, so if you're looking for them for a quest, or your own personal collection, then you'll want to head here first.
Before you head out fishing, you'll have to complete Badtz-Maru's "Keep it Reel" quest. This will automatically be unlocked once you've hit Level 3 friendship with him...