I played this twice. Hard level took me 15 minutes. Insane took me 18 minutes. There are 1000 rings on all but the last level. The only way you can get all 1405 rings is to play on insane skill level. There are rounds with 3-hit bricks in so on insane they turn into 6-hit bricks; so be warned. All levels are basic; no movement classic ricochet; and have a ball catcher. I found it to be basic not too much exciting fun.
Level sets are graded in Ricochet Infinity.