You control a flying robot with a propeller on you head... well you are just a head, so... and you can fly and...
Anyway. This game is beautiful and charming puzzler. It's and adventure game with puzzles to occupy you.
You pick up things. You swap objects. You carry items. You rotate and align lasers. You time things righ so they get or don't get destroyed/damaged.
You do all this in air, on the ground and under the surface of water. There is a nice variety of puzzles: some are based on sound, some on timing, some on finding items that you can put to make something work. Certain puzzles rely on not hitting obstacles. Sometimes you have to use one thing to activate both detectors at the same time.
The setting is variable: industrial, biological, underwater, caves, volcanic. Variety is nice, but there are no sharp changes - it is all smooth.
This game is rather easy, but very enjoyable. You just focus on the world and keep going on. Definitely you will not suffer from the same type of puzzles. I don't think there are any frustraing or even difficult puzzles (maybe the second magnet will take you several tries, but nothing aggravating).
Graphics is great. Performance is excellent. Sounds are good and music is calm and pleasing.
The game is short. It ends quickly and leaves you wishing it was much longer. This is my main concern.
Is it worth playing? Absolutely. Puzzles are fun and atmosphere is fantastic.