This short set is another experiment for me. Every round offers you the choice of playing manually or as an autoplay - on some you decide when you first launch the sphere; on others you have a short time to decide; and others you can play manually for a while and then choose to switch. The round names usually indicate what you need to do. Best of all; each round gives you at least one opportunity for a "No Ship Bonus"!
Level sets are graded in Ricochet Infinity.