[Impossible] - "Empyrean" with Frame Windows Counter
Empyrean is a kind of old ILL level created by famed ILL player Septagon7, and Koopi, an old level creator. This level actually used to be the hardest ILL level, dethroning Crimson World on August 15th 2019. Similarly to Crimson World, it has a super impossible last wave, which really takes the leve...
