Core Ball becomes challenging because space around the center ball gradually reduces with every successful shot. Faster rotation, sudden direction changes, and closely placed pins increase difficulty. Players must stay calm and avoid rushing, as speed without control leads to collisions. Each level tests patience, hand-eye coordination, and concentration. The difficulty curve is well designed, making early levels simple and later levels intense. This balance of simplicity and challenge is what keeps players engaged and coming back for more attempts. https://www.monkey-type.org/games/core-ball