I guess this is what happens when you have a lot of spare time and dedication to Sega.
Just like the title says, this is every Master System game released in the US put to the tune of Yakko's World from Animaniacs, something that someone could only think of after listening to the song an obsessive amount of times, studying the amount of countries listed, and realizing that the number is roughly the same as the number of SMS games released in the US. Some games were excluded from the song, like sequel titles, to keep it from being repetitive.
Someone may also be covering this song in a bit, so I'll make sure to link to that as well. For now, I'll leave you with the lyrics and a karaoke version to sing along: https://www.youtube.com/watch?v=ZBQFeTWIHZYShinobi & Out Run and Quartet, Safari Hunt, Enduro Racer, Golden Axe
Dick Tracy, Dead Angle, Monopoly, Blade Eagle, then Altered Beast to the max
Rocky and R-Type and Rastan and Rambo and Rampage and Rescue Mission
Spiderman, Pac-Man and Paperboy, Penguin Land, Psycho Fox and Zillion
Spaaaaace Harrier, Spell Caster, Sonic & Strider and Slap Shot and Spy vs Spy
Wonderboy, Wanted and Missile Defense 3D, Thunder Blade and Shanghai!
Golden Axe Warrior, Michael Jackson's Moonwalker, grab them right off of the shelf!
Kenseiden, Poseidon Wars, Alien Syndrome, well really anything but Alf
Then we have Alex Kidd in the Miracle, Shinobi, High Tech and Lost Stars
Aztec Adventure, The Ninja, E-Swat and Time Soldiers and Phantasy Star
Black Belt and Bomber Raid, F-16 Falcon, Astro Warrior and Zaxxon
Columns and Cloud Master, Ghost House and Choplifter, Pro Wrestling and Hang-On
Carmen Sandiego, Transbot, Montezuma's Revenge, Teddy Boy, Snail Maze
Castle of Illusion, Casino Games, Power Strike, Fantasy Zone and The Maze
Great Baseball, Great Soccer, Great Football, Great Golf, Vanished Omens and R.C. Grand Prix
Great Volleyball, Ice Hockey, Ghostbusters and then Parlour Games and Maze Hunter 3D
Suuuuper Monaco GP and then Walter Payton, Cyborg Hunter, Zillion 2
Global Defense, Galaxy Force and Basketball, Golvellius: Valley of Doom
After Burner, Kung-Fu Kid, Trap Shooting, Joe Montana Football, Lord of the Sword
My Hero and King's Quest, Miracle Warriors: The Seal of the Dark Lord
Allllsso Reggie Jackson, Sports Pad interaction, Super Tennis and World Grand Prix
Gangster Town and then Captain Silver and Marksman Shooting and Vigilante
Aerial Assault, Buster Douglas, Double Dragon, and then Califor-nee-a Games
And to balance things out, here are some PAL exclusives:
Asterix, Sonic 2 and Ace of Aces and Chuck Rock and Ecco and Land of Illusion and finally Dynamite Dux!"