Yeah it adjusts automatically. You can do velodrome races and it will ease off the resistance if you are drafting someone. Or ride one of the previous uploaded video routes Eg an alpine pass and it will adjust resistance according to the hill.
Can even make you own route from a gpx file, upload it and the software will generate a simulated scenery to ride through but alter resistance on the hills.
Also as mentioned, race others live or previous best times, or race against computer opponents.
Mine came yesterday just set it up and had a quick play, definitely the best indoor turbo experience I’ve had. Doesn’t beat outside, but quite looking forward to some miserable weather now so I can get on it!