Legend of the River King GBC

EMBARK ON A DANGEROUS QUEST TO CATCH THE FISH THAT CAN SAVE YOUR SISTER'S LIFE. You'll need all your angling and survival skills to succeed in this unique fishing RPG. On a perilous quest to capture a mysterious and mystical fish, you'll deploy a variety of tackle in both quiet lakes and raging rapids. Along the shores, dangerous animals are a constant threat. To get supplies, you'll sell some of your catch at village markets. (Gamefaqs)