You can use this for your project, as long as you give credit. The original difficulty ball came from Robert Topala's 2013 video game Geometry Dash, which can be played on mobile or PC. Scratcher @griffpatch created a Scratch port, which many websites (HoodaMath, for instance) have playable. Tags: #hard #art #geometrydash #prismgd #mulpan #difficultyfaces #difficultyballs #area #confirmed #areaconfirmed #fireinthehole #wateronthehill #partitionzion #robtop #gd