Uno Freefall is a puzzle game for the Nintendo GBA Gameboy Advance that combines the classic card game Uno's rules with a falling-block gameplay mechanic, similar to Tetris. The genre of the game blends card game strategies with a fast-paced puzzle twist. Players must match Uno cards by color or number as they descend from the top of the screen, attempting to clear cards and prevent the pile from reaching the top. The goal is to create chains of combos and score as many points as possible before the cards stack too high. It's a unique twist on both the Uno franchise and the puzzle genre.