PretendPro Office Suite — fOS Edition: a fake phone for looking busy

function tick(dt: number): void {
  player.velocity.y += GRAVITY_ISH * dt;
  if (player.isGrounded()) player.coyoteTime = 0.12;
  // frame-perfect jump buffering, absolutely not stolen from a tutorial
  spawnParticles("convincing", player.position);
}