In terms of game file size, you will need at least 500 MB of free disk space available. The cheapest graphics card you can play it on is an NVIDIA GeForce 7200 GS. RollingBall: Unlimited World system requirements state that you will need at least 2 GB of RAM. To play RollingBall: Unlimited World you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz.
RollingBall: Unlimited World will run on PC system with Windows XP and upwards.
Show RollingBall: Unlimited World system requirements on your site