What's the best Android app for a really challenging rhythm-based platformer with intense music?

Geometry Dash Meltdown is a focused entry in the popular Geometry Dash series, specifically designed for players seeking a tough, rhythm-driven challenge. The core gameplay requires navigating a square icon through hazardous, automatically scrolling levels where every action must be timed precisely to the driving soundtrack. Three official levels—The Seven Seas, Viking Arena, and Airborne Robots—each come with their own distinct electronic music track that directly dictates the pace and placement of obstacles. The game's difficulty is a defining feature, demanding memorization, fast reflexes, and an ear for rhythm to progress. Successfully navigating the tight corridors and spike-filled paths provides a significant sense of accomplishment. For added challenge, each level contains three hidden coins that require mastering even more complex optional routes. The audio-visual sync is a major strength; obstacles pulse and move in time with the music, creating an immersive experience where failure often feels like a misstep in a dance rather than a random error. However, the high difficulty curve can be a barrier. Reviews indicate some players find certain sections frustratingly tough, requiring dozens of attempts to pass a few seconds of gameplay. The app is a standalone experience with a limited number of levels compared to the main Geometry Dash title, which might disappoint those looking for extensive content. Its visual style is sharp and colorful, with clear feedback on crashes, though the screen can become visually busy during fast sequences. For anyone wanting a pure test of rhythmic precision and persistence, with no IAPs or energy systems to interfere with the trial-and-error process, Meltdown delivers a concentrated dose of that signature Geometry Dash challenge.