Well this video just because I bought this on Steam's holiday sale for nothing but I found the game very very enjoyable. It took me 15.5 hours to fully complete, it has replayability if you want to optimize your records, or if you want to create a "mod". On difficulty I am not a mad puzzler so it isn't impossible, don't give up easily, use that info to decide whether to buy or not at whatever price you find it at. I played three easy levels on the three separate game modes, the game uses sliding puzzles, but have different "skins", pipes, colored steam, bells (annoying for newbies), etc I didn't play a harder one because it would have taken me longer and I just finished it I am not displaying skill, just gameplay. I also show my records after beating the game :P For bell puzzle I suggest you make a mental image of the Gear, then listen to the tune you are asked, then place the three different types Gears' hammers and rotate them so you draw the tune with the hammers on that mental image. Then identify the Gears and Bells to use and have the first bell start sounding, then prepare the second bell but don't move in its Gear yet, check in what position it's hammers are and rotate the mental image youhad built before so both match. Then check the current rotation of the one that is already hitting the bell, and wait until it matches the position it should be given your mental image, when it matches slide the second bell's gear and if you built your image correctly you will start to hear the tune. Do the same for the remaining bells and voila.
