User blog comment:TheXLR8D/Flying contraptions!/@comment-92.24.132.21-20110901165709

The only way this wouldn't ruin the game is if it could only be obtained at around the time your map started to run out of things to do (around the same time you've been in all of the chests in the dungeon, underworld and floating islands, so let's say, once you've found about 80% of the worlds chests) and if once you got it, it was part of your map, not part of your character.