Color choices blend the background and nighly invisible obstacles. The gameplay and audio are incredibly satisfying, but they quickly lose novelty due to excruciatingly repetitive and slow progression rewarding you with minimal content. The game is pay-to-play without ads, but you have plenty of time to try it out before the ads start showing up. It's an aimless endless autoscroller so give it a shot if you're into 2010 app gameplay with modern (although poorly planned) aesthetics.