Cat Up is a one-button pixel cat platformer where you guide a speedy little cat through 15 increasingly tricky levels, collecting coins to unlock doors and push further through each stage. The controls are dead simple - one button to jump - but the real challenge is nailing your timing as the cat moves fast and the platforms demand precision.

Each of the 15 levels throws new obstacles and coin placements at you, meaning you can't just mash your way through. Coins aren't optional decoration either - you need them to open the doors that let you progress. Miss too many and you're stuck. The retro pixel art style keeps things clean and readable, so you always know exactly where you are and what's coming. It runs smoothly on both desktop and mobile browsers, making it easy to pick up for a quick run during a break.

Cat Up is a great pick for fans of one-button games, retro arcade platformers, and cute pixel games that are harder than they look. If you enjoy minimal-control skill games, single-player arcade challenges, or just love a good cat game online, this one delivers a satisfying loop without overstaying its welcome. Search terms like free cat platformer game, pixel jumping game no download, and one button arcade game online all lead back to exactly this kind of tight, fun experience.