The cheapest graphics card you can play it on is an NVIDIA GeForce 510. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run Bubli. Bubli system requirements state that you will need at least 512 MB of RAM. You will need at least 100 MB of free disk space to install Bubli.
Bubli will run on PC system with Windows 7 and upwards.