The Nintendo Game Boy, logos, and startup background are owned by Nintendo and the late great Gunpei Yokoi.
Tetris is owned by Bullet-Proof software, The Tetris Company, and Alexey Pajitnov.
Twilight Sparkle and Starlight Glimmer are owned by Lauren Faust, DHX media, Hasbro, Allspark, and studio B.
Vectors by decprincess and @luckreza8
Hope you guys like the tribute pic