The legendary level (2.0) was dethroned by "Sonic Wave" and eventually by 2.1 monsters like "Yatagarasu," "The Golden," and the infamous "Slaughterhouse" (which pushed the limits of human reaction time via 360fps bypass hacks). These levels feature frame-perfect inputs, invisible speed changes, and memory-based sections that require you to memorize 3 minutes of pure chaos.
: New currencies introduced to reward players for completing custom levels and daily chests. Geometry Dash 2.1