Concept is excellent.
Art is average.
Sounds are..average,poorly chosen but not horrible.
Controls are good,they are tricky at the start but later on your brain will memorise and get used with it.
Game mechanisms are a bit poor though..the physics works,but it has its flaws.Having ANY object that collides with you cause damage is stupid,even your hooks cause damage.Damage should be only when you hit something while flying,not with your hooks.
The game shouldnt be so frustrating too.
Level 9 for example...i took a lot of time to reach the ship since it kept going away...and since you cant repair your goddamn helicopter,i exploded just before i had one crate left to put.JEEZ,i ragequitted after level 9.
Good concept,some good levels but POORLY crafted.Theres a ton of music and sound effects out there and you get the old ones?Same applies with art...just textures.
My opinion is,this game is just a "experience" one,you didnt really aim for a 100% game here.