Unsurprisingly, there are tons of legendaries to collect in Borderlands 4, and almost all of them require you to grab your guns and farm dedicated boss drops to get them. But there's an exception to this rule, the Slippy legendary grenade—a dead fish with six eyes and terrifying teeth. Don't ask how it works, it's just Borderlands logic, I guess, it's not like it's the first time we've had a fish grenade.
Naturally, being a fish-based grenade, there's a chance to get the Slippy from any fishing spot around Kairos. However, the best location to get the Slippy is in the Fishin' Spot near the Stockroom Silo and Plungeford, in the Coastal Bonescape region of the Fadefields. Yes, that's basically right where you begin after the prologue.
