Extreme Demons are extremely hard Demon levels, their difficulty far beyond those of most demon levels. The majority of these levels have but hundreds of completions, with the most difficult having mere tens. These levels usually require extreme precision, memorization, and practice to complete, and more often than not will heavily benefit from being played on a low response time, high refresh rate display.
As of 29 March 2019, there are 131 Demon levels which are officially rated Extreme Demons by RobTop on this website. In addition, there are also several upcoming, abandoned, or unrated Extreme Demons.
Extreme Demons are preceded by Insane Demons in difficulty. There is no other official difficulty surpassing Extreme Demons.
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