Play Big's Fishing Derby Online

Summary

Big's Fishing Derby is a total‑conversion hack of Sonic the Hedgehog 2 for the Sega Mega Drive that swaps the classic platforming for a quirky fishing contest. You take control of Big the Cat, wandering from pond to pond and trying to reel in the elusive Froggy while dodging the occasional underwater Badnik that can snag your line.

A second player can jump in as Dr. Robotnik (Eggman) and race against Big, each trying to secure Froggy and the Chaos Emeralds it carries. The game strips away the original levels, replacing them with a series of water‑filled stages where timing and careful line management are key.

Originally conceived as a hidden mini‑game for the fan‑made Sonic Classic Heroes, the concept expanded beyond its secret roots and emerged as a standalone title, preserving the humor of the Sonic Adventure fishing segment while offering a fresh, competitive twist for retro fans.

Storyline

In Big's Fishing Derby, the mischievous frog known as Froggy jumps into a warp ring and somehow gathers all the Chaos Emeralds. The surge of emerald energy powers Dr. Robotnik’s new aquatic roboticizer, prompting the villain to notice the nearby emeralds. Seeing an opportunity, Robotnik decides to embark on a fishing trip to retrieve the emerald‑laden frog. Meanwhile, Big the Cat is determined to rescue his pet and enters the contest against Eggman. The two rivals race across a chain of lakes and rivers, trying to hook Froggy while dodging hostile underwater Badniks. Big’s goal becomes not just catching the frog but also keeping whatever the emeralds contain out of Robotnik’s clutches.