You go all the way to where those hay things are by the Ye Olde Rumour Mille. You have to get in between those hay stacks. Push one left, then push one right. Then you will see a metal hatch. That metal hatch is what you use the key on.
You do not get or use a bucket on Astro Knights Island.
The small key in Astro Knights Island is for Mordred's secret hideout. When you come to that wind mill area, move the hay bales apart and use the key on that.
Go to the hay bales and push them apart. The key opens the hatch to Mordred's underground laboratory.
You jump in between the middle and then you push them and you'll find the secret door to mordred's layer then you use the key
The secret room between the hay bales!
It goes to the mud swamp, which is the only place that you can use it.
The gold coin in Astro-knights is in the fountain. You will see something glittering in the water, and if you pick it up, it will be the coin. Use it to pay your admission to the Mordred museum.
None of the computers on Arturus work because there's no power for them.
yu dont yu get manure and use it tu get accross
What you do is when you go up into space you click on the coordinates and you follow tem
use the rope and tjhe code dh h husfvbsufhsuiecdfhf
You use it to power the hover board (hovercraft) in the attic of the windmill. (see related question)