Rhythm Horde Survivor Game Builder

Every weapon is an instrument and every shot lands on the beat. Fill the Groove meter, hit THE DROP, and 500 enemies burst into notes. Claude Code builds a full pixel-art rhythm survivor in one HTML file: 4 characters, 16 instruments, 14 pedals, 8 Duet evolutions, 25 relics, 12 enemies, 3 three-phase bosses, 5 stages with new rules, endless Encore, saves, gamepad and touch. Every sprite, sound and song is made in code. No assets needed. 4 variables re-skin it.