Well that was cute, I like the idea of using a hook to go to the other islands. Art style was nice and unique. It was fun , but I quickly grew confused as I went to (tried to) all the islands and nothing happened. I think some simple clean up could make this a sweet little game.

Problems and suggestions: 

Have the cowboy be able to jump? I couldn't make it to some islands due to height, I also kept sliding off the island when hit due to momentum it was frustrating, so maybe lock the character or let the player run in the opposite direction to save themselves.

• Add a how to play screen?
• Make the text/dialogue clicked based. I had to die to reread it lol.
• Maybe add cursor/ cross hair for aiming. Don't have the rope charge up  same as the colour as the sky.
• Lower the sensitivity of the mouse?
• For ending/goal, have the player gather all the islands into one big island. Or talk to all cut-outs and when all done you learn how to return to earth?

This seems like a really fun concept!

However to anyone under Linux, esp. with more than one monitor, it will probably not work. Whenever my mouse exited the window, I couldn't look around anymore.

Fun concept. It required a lot more polish though. Nice work.