If you are thinking of a nostalgic indie title, there is a 2D endurance platformer originally built for the Commodore 64 and modern computers.
You control a character named "Mr. Cube" through single-screen puzzle levels. You must dodge traps, collect spinning coins, and reach the exit before the strict time limit runs out.
Screenshots
Instructions
Keyboard: Q A O P SPACE
Trivia
Build from source from the C64 Game with AI tools.