rl - the 7th in our "focus" series! (aa, uu, ff, au, rr, ao, rl, sp & th). Figure of 8 loop. Don't cause collisions. Just like other apps in our series, the more you get into each level, the more it changes. There are theoretically infinite ways you can complete each, it makes for great fun. You can also top the leaderboard and earn medals! (bronze, silver and gold).