Editing Ouroboros (section)

==History==
===Ouroboros being born===
Soon after [[SubSonic]] was verified by Combined,<ref>https://www.youtube.com/watch?v=F-AfSPnjIcM</ref> Viprin said he had about sixteen more mega-collaborations planned, two of which were set to be Extreme Demon levels. On 10 September 2017, Viprin released [[Digital Descent]], one of the Extreme Demon levels he was talking about (also verified by Combined).<ref>https://www.youtube.com/watch?v=W6PDdaXSafw</ref> On 17 March 2018, Viprin uploaded the first preview of Ouroboros.<ref>https://www.youtube.com/watch?v=pppCE0WVi00</ref> The parts featured Viprin's part and Loserchik67's part. 

About seven months later, on 1 October 2018, Viprin uploaded the second preview of Ouroboros.<ref>https://www.youtube.com/watch?v=0OCS_7H_A4E</ref> The parts he previewed in this video were the first five parts of the level, [[AbstractDark]], Terron, Rustam/TrusTa, [[Darwin]], and TheDevon. He stated in the description that TrusTa would verify the level once it was complete.

Around the end of 2018, Viprin stated that TrusTa would no longer be verifying Ouroboros due to 'real-life stuff' and would be giving it to knobbelboy. It would be revealed to the public on 6 January 2019, when Viprin uploaded the third preview of Ouroboros to his channel.<ref>https://www.youtube.com/watch?v=KeVOIxzoaFM</ref> This video features the first nine parts of the level. Eventually, in late February 2019, Ouroboros was finally finished, and knobbelboy got straight to work on verifying.

===Verification process===
On 2 March 2019, knobbelboy began streaming progress on Ouroboros and got a record of 29%.<ref>https://www.youtube.com/watch?v=ds8-bxnbyUo</ref> As he practised, several creators were finishing their parts in the level. Two days later, on 4 March 2019, ChaSe released a video showcasing his part in the level. In the video description, he stated that his part uses around 37,000 objects due to all the details he added.<ref>https://www.youtube.com/watch?v=qJWxBbjAo44</ref> The next day, however, he released a second video showcasing his second part in the level, which consisted of a fast-paced dragon boss fight and used roughly 40,000 objects.<ref>https://www.youtube.com/watch?v=amgQ_FXzjfg</ref> On the same day, OSIRIS released a video showcasing his part in the level. In the video description, he explained that the background is inspired by a city in flames, destroyed by a dragon.<ref>https://www.youtube.com/watch?v=T05xKrzXxS0</ref>

Four days later, on 9 March 2019, knobbelboy achieved an incredible 49%. In the video description, he predicted it would likely be harder than [[Plasma Pulse Finale]] in its current state.<ref>https://www.youtube.com/watch?v=fWGA0mqyGBo</ref> After a long absence on 24 March 2019, he achieved runs of 65-100% and 52-93%. In the video description, he stated that he still does not think it is harder than Plasma Pulse Finale, but still believes it is at least as hard as [[Yatagarasu]].<ref>https://www.youtube.com/watch?v=HvmFg7rSXy4</ref>

The next day, on 25 March 2019, Darwin uploaded a video showcasing his updated part in the level, which contained some new pulses and a few minor details.<ref>https://www.youtube.com/watch?v=tBy2gxthRY4</ref> After a long period of inactivity, on 4 May 2019, knobbelboy achieved a new record of 67% but stated that the level was slightly nerfed.<ref>https://www.youtube.com/watch?v=4uXcmoGd6gs</ref>

However, on 14 July, knobbelboy set a new record of 71% but announced in the video description that it would be his final progress run on the level due to a three-week vacation.<ref>https://www.youtube.com/watch?v=Qdxrb2YmFwU&t=36s</ref> Viprin then passed the verification on to Technical, who quickly achieved records of 31% and 67-100% the next day.<ref>https://www.youtube.com/watch?v=hulKuVvYivA</ref> Two days later, on 17 July, he achieved an unbelievable 76%.<ref>https://www.youtube.com/watch?v=WtOsBw5uoPY</ref> About a week later, on 25 July 2019, he recorded an insane record of 90% in just under 10,000 attempts.<ref>https://www.youtube.com/watch?v=N2-M0r_nnNs</ref> On 27 July 2019, shortly after receiving a 95% fail, Technical finally verified Ouroboros in 10,351 attempts.<ref name="Verification" />