I thought the game was really unique how it played, and its main concept. I did find a few issues that would make the game a lot better, the first is that the game automatically comes in French and for me a person who doesn’t speak a word of the language it can be quite hard to figure out what anything means, although you can change this in the settings but for some reason the achievements on your game centre profile stay in the language.
Another thing I felt could be added to the game is a starting cut scene and a built more development as to why the professor is jumping onto moving gears away from this toxic liquid anyway, maybe a different cut scene each chapter to explain who the professor is as a character.
I did like how challenging the game was however, as even thou the cogs you have to collect kind of lead the way it can still sometimes be quite tricky to jump from one to the other which I felt gave the game a bit more style and made it harder to complete.
I also really liked the graphics in the game, which I thought had been done really well and is actually my favourite part of the game overall.
The game is available free on both the iTunes App Store and Google Play, you will have to but an in-app purchase to receive the extra levels, but its one game you should defiantly at least try.