Fun concept, but the levels were a little weak. I wish there were multiple pieces of iron to collect, and I'm confused what the coins do. I'd love to play a later version of this.
The coins let you use the ship at the end of the game. If you don't collect them all, then you get a game over. It's probably confusing for the people that get them all on the first try, because there's nothing that tells you that fact (other than the game page's description).
