Submission by Catxi

Rhythm Grid — Transforming the minimalist black-and-white aesthetic of the 2010s into a portal leading to infinite soundscapes. Do you remember that sense of pure tension? The screen scrolling endlessly downward, your fingertips hovering between black and white—where a single touch could be a matter of life and death. We have preserved the soul of that minimalism: no flashy lanes, just the binary aesthetic of right and wrong; a tempo that accelerates with your heartbeat; and the unforgiving arcade brutality where a single mistake spells the end. Yet, we have transformed every successful tap into a creative brushstroke. When the final black tile vanishes beneath your fingertips, what plays is no longer a pre-programmed MIDI loop, but an original AI composition generated in real-time via the ElevenLabs Music API (music_v1). Your combo count, your speed tier, and your chosen genre tags are assembled in real-time into a prompt injected directly into a neural network. "Easy" mode might conjure flowing Lo-fi piano melodies, while the dizzying descent speed of "Expert" mode unlocks a completely reconstructed Drum & Bass track or a symphonic variation. The same level, three distinct universes—and absolutely zero canned music. Built on a tech stack of React, TypeScript, and Vite (developed using Zed), the game features three built-in starter tracks. No API key is required—allowing you to dive back into that "purely for the high score" golden era in under 10 seconds. But this time, every S-rank playthrough expands a personal music library that never repeats itself. The black-and-white aesthetic serves as the nostalgic shell, while AI generation provides the futuristic core.