Tell Your World being used in the reveal trailer for the western release of Project Diva F. A song about making connections through Miku's music, with a stylised image of the spread of Vocaloids the world over, which was the marquee song for the franchise to enjoy the first of several global releases which have been universally successful.
Even more profound was where the song debuted. In a Google Chrome advert celebrating that Miku is not a Japanese phenomenon any more, she is a GLOBAL phenomenon. And SEGA clearly knew that made it the perfect song to go 'Hello, World, It's Miku here...'
Many players complained about how unfair the chart for Urotander Underhanded Rangers was in X. But, considering the song is about a group of heroes who win using underhanded means, SEGA undoubtedly did this intentionally by stacking notes on top of each other and putting them close enough to the edge of the screen that the note flying in was impossible to see most of the time, along with other things.
In Disappearance Of Hatsune Miku, Miku begins singing a song about the fact her existence has become largely pointless. As she continues, the lyrics begin to mix and mash together due to one particularly horrific thing... Her mind is falling apart, and she barely has any clue WHAT she's actually saying any more...