What is the most popular and well known Touhou remix outside of the Touhou community?
Touhou is a series of Japanese video games that feature bullet hell shooters and complex music. Touhou remixes are fan-made arrangements of the original Touhou songs, often in different genres and styles. There are many Touhou remixes on the internet, and some of them have become popular outside of the Touhou community.

One of the most well-known Touhou remixes is **Night of Nights**, which is a remix of Flowering Night, the theme of Izayoi Sakuya from Touhou 9: Phantasmagoria of Flower View. The remix was made by COOL&CREATE/beatMARIO and features a fast-paced techno beat and catchy piano melodies. The remix has over 31 million views on YouTube and has been used in many memes and videos.

Another popular Touhou remix is **Bad Apple!!**, which is a remix of Bad Apple!!, the theme of Stage 3 from Touhou 4: Lotus Land Story. The remix was made by Alstroemeria Records and features vocals by Nomico. The remix became famous for its shadow art video, which shows various Touhou characters in silhouette synchronized with the music. The video has over 25 million views on YouTube and has inspired many parodies and imitations.

A third example of a well-known Touhou remix is **Desert Reign**, which is a remix of Desire Drive, the theme of Stage 4 from Touhou 13: Ten Desires. The remix was made by Releska and features a Middle Eastern style with ethnic instruments and vocals. The remix has over 1 million views on YouTube and has been praised for its originality and quality.

These are just some examples of the many Touhou remixes that have gained popularity outside of the Touhou community. There are many more Touhou remixes that you can explore and enjoy online.
Thank you for the detailed response. Can you make it more concise?