TON 618
TON 618 is a 2.1 physically impossible level by Pooch and Arctic, published on 3 March 2021. It is themed around outer space and the quasar TON 618, containing one of the most massive black holes ever discovered. The level features gameplay with extremely tight gaps that are physically impossible for a player's icon to fit through, as well as clicking and computational frames well beyond current computer capabilities.
History
Creation
TON 618 was uploaded during the 2.1 era as an intentional joke. fnm04 published one of the earliest full bot showcases in August 2021. The level had to be recorded at 0.05x speed, then sped up due to severe lag.
The level consists mainly of wave spam that requires thousands of clicks per second. The creators compressed almost all level data onto a single editor layer, making the level notorious for crashing the built-in editor if players attempt to modify or nerf it without external tools in Update 2.1.