i keep getting really weird scores from this if i get every star - the 2 crabs and the star in the vertical channel - and the gold sack, at the end i only ever get 'impressive' and i randomly get awarded 0, 1 or 2 stars how do i get it to give me all 3?...

I got a perfect on all played levels with Standard difficulty on the non-bonus map. I had three more levels to play. I didn't play it for over a week, and now it shows that I have many non-perfect levels, scattered. There is something wrong there. I can replay the levels, but there is no way that I missed that many. Maybe one or two, but there are WAY more than that. I was sure to get every pot of gold. I never hit the continue button, and I replayed the level if I ran out of moves. Is this related...

I have a new computer. Since there is no cloud support, I need to know how to save and restore my save progress. Thanks!

I used all the pieces but there's a gap where there's supposed to be 1 piece left. It's the bottom tier on the bonus puzzles screen and third from the right. It has pillars.

So, I played all the bonus levels, bought all the fish etc. But no achievement. Figured I must have missed something, did it again. Still no achievement. What gives? There are 3 bonus scenes, right? Anyone else get this one?