Sky Kid March is one of the most absurdly cheerful arcade loops ever written. Namco's 1985 side-scroller had no right to give its biplane shooter a tune this bouncy, but here we are and it still gets stuck in your head decades later.
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The whole package here is the full sound effect collection too, so you get every hit, burst, and crash from the original PCM hardware. Baron and Max's loop has that classic mid-80s arcade chip sound, all square waves and optimism.
The Extend Fanfare is like three seconds of pure dopamine. Honestly half of this is sound effects. But that march though. If you grew up pumping quarters into cabinets, this one's a time machine back to the arcade floor.