Love the audio design—it feels energetic yet peaceful at the same time. The mechanic is fairly simple: matching as many frequencies as possible within a limited amount of time. The settings for the game is also very cleverly designed. It matches the pixel art style of the game, and I like how the buttons visibly press down on screen. One fun expansion could be adding more variations to the mechanic. Instead of always matching frequencies, there could be situations that require inverted frequencies, or obstacles that force players to control frequencies in order to dodge them.