Two tracks and both of them go harder than you'd expect from a puzzle game called Orbit Spherez. This mid-2000s indie title landed on everything from Famicom to Linux, and the menu music has this bouncy, synth-driven energy that immediately gets stuck in your head.
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The main gameplay track shifts into something more driving, keeping the tempo up while you're rotating spheres around. It's short, yeah. Really short. But there's a scrappy charm to indie soundtracks from 2006 that were clearly made by someone who just wanted their puzzle game to feel fun.
If you're the type who remembers obscure Flash-era puzzle games fondly, these two tracks will hit that exact nostalgia nerve.