Where is the iron key? i have combed every wall in the place. I have the float and small size spheres in use. There are no small tunnels where i could use the small sized sphere. I see no hints in the foreground either where the key could be i.e. hidden behind a crystal....

1) as above. it fades away from start. it does not relate to how fast i complete the map or how much i use my abilities - nor is it a secret you find. what is it? 2) Critical crash on final level - maps/level39.png could not be loaded. Fix it please.

Is this game coupon applicable?

Tested a set of games on SteamOS. one of them was Fjall and it was the only one that did not start. Nothing happened after launching it. Returned back to game list.