Friday Night Funkin - Omnipresent

Friday Night Funkin - Omnipresent is a Friday Night Funkin' mod — the open-source rhythm game where Boyfriend rap-battles whoever stands between him and Girlfriend, one arrow-matching duel at a time. Mods like this bring new opponents, new songs and often wildly different difficulty to the base formula: hit the arrows on beat, win the crowd, don't flatline.

The whole thing is controlled with keyboard and mouse, and the basics click within a minute. Touch controls are supported, so a phone in a queue is a perfectly valid setup. You can take it fullscreen anytime; some games simply deserve the whole monitor. Give it three minutes. That's how these things start.