Year of release: 1992
Besides the strange assortment of characters from the first Town & Country Surf Designs game, known affectionately as "Da Boys" (that would be Joe Cool, Tiki Man, Kool Kat, and Thrilla Gorilla), you probably wouldn't even know that Thrilla's Surfari is a sequel at all.
The two games couldn't be any more different. The first game is more like a series of skateboarding and surfing minigames, while its sequel is a full-fledged action game, with skateboards, surfboards, and sea creatures. It's a strange game full of downhill shredding and tough jumps, but it's a classic NES title, and one that expands heavily on its predecessor.