How does it work?
Every dungeon in the main game has its own leaderboard. The quicker you get through the more points you will get. But be aware that the number of rescued guys counts as a multiplier. So make sure to catch them all when you go for that high score.
There is also a global Game Score Board.
Leaderboards can be accessed from the overworld by clicking on the panel showing your points (Steam Overlay has to be enabled).
