Kirby's Avalanche is a puzzle game developed by HAL Laboratory and published by Nintendo in 1995 for the Super Nintendo Entertainment System console. It is a westernized version of the Japanese game Puyo Puyo and features Kirby in a puzzle competition against various characters from the Kirby universe.

The game features Kirby as he competes in a puzzle tournament against various characters from the Kirby universe, including Whispy Woods, Kracko, and King Dedede. The goal of the game is to match colored blocks in groups of four or more to make them disappear and send garbage blocks to the opponents' screen.

The game features several game modes, including a story mode in which Kirby competes in a series of matches to reach the end and become the champion. There is also a two-player mode in which two players can compete against each other in puzzle matches.

As for the plot, Kirby's Avalanche follows Kirby as he competes in the puzzle tournament against various characters from the Kirby universe. As Kirby advances in the tournament, he discovers that King Dedede is behind the tournament and is trying to take control of the Dream Land kingdom. Kirby must defeat King Dedede in a final match to save Dream Land from his evil plan.

In summary, Kirby's Avalanche is a puzzle game that features Kirby in a puzzle competition against various characters from the Kirby universe. The game features several game modes, including a story mode and a two-player mode. The plot follows Kirby as he competes in the puzzle tournament and uncovers King Dedede's evil plan to take control of Dream Land.