It's a reasonably simple game, but it provides the kind of puzzle entertainment I find compelling. I have been playing "Treasure Chase" for may months. I've done all of the standard "adventure" track puzzles, all of the bonus puzzles, and am now down to the last scannable board from the instruction booklet. It took me this long because I only spend may be 15-20 minutes a day playing it, and because I have strived to get a perfect score on every board. The one huge flaw for me is the lack of visual clues to show the optimal solution when you completely give up on getting a puzzle resolved. The "solve the puzzle" option simply skips the current puzzle.The challenge level is reasonable. While many puzzles were solvable in a few minutes, some boards took many days to get right. One has been impossible for me to get in the "optimal" number of moves -- I always end up being one move over the "perfect" mark.Why not give it 5 stars, then? The lack of a solution/hinting mechanism mentioned above is one issue. The music/audio wasn't bad the first few days I played the game, but over time became irritating. While the number of puzzles is extensive, it's not nearly as impressive when one takes into account the lack of replayability. And I felt somewhat cheated when I managed to solve a number of puzzles in fewer moves than the "perfect" threshold suggested by the game. If it's "perfect", shouldn't it be absolutely the minimal number of moves?Summary: At the list price, it's a.