Geometry Dash Nefarious is a pulse-pounding and diabolically challenging Insane level in the popular platformer game Geometry Dash. Created by the talented level designer GD Lemons, it is known for its intense level design, blistering speed, and sadistic obstacles that test players' reflexes and rhythm. In this level, players will encounter spinning sawblades, precision portals, and unpredictable speed changes that demand razor-sharp precision and unwavering focus.