Quartet

Quartet is a run-and-gun platform game set in a futuristic Earth colony overrun by an army of hostile robots. You control one of four characters: Joe, Mary, Lee, or Edgar, and must fight through 32 side-scrolling levels to defeat the robot forces. The goal of each stage is to advance through the environment, battling enemies that emerge from portals, and ultimately destroy the level's boss, who drops a key to the exit. The game features power-ups including jet packs, springs, speed boots, and point bonuses. Each character has a unique weapon that can be upgraded by collecting a colored orb; picking up the orb matching your character's color grants a weapon upgrade. The game supports up to four players simultaneously.

Commodore 64

Published by Activision in 1987, the Commodore 64 conversion is widely considered a disappointing port of the arcade classic . It reduces the player count from four to just one or two, stripping away the multiplayer appeal that defined the original . The game features 22 levels with a constant energy bar that depletes over time, adding urgency to each stage . Power-ups include springs for higher jumps, jet packs for flight, and shields for temporary protection, but the graphics are often described as low-detail and messy, with questionable sprite collision and unusual enemy movement patterns . The soundtrack was composed by David Whittaker . While the core mechanics of shooting enemies, collecting power-ups, and defeating bosses remain, this version received poor reviews, with Happy Computer giving it a score of 37% and Commodore Force awarding only 24% in 1993 . It fails to capture the charm and excitement of the arcade original, making it a forgettable conversion for one of the system's most anticipated arcade ports .