There's another issue with progression in the game, but it isn't found in gaining experience points. (justpushstart.com)
Even though there are very vague clues as to how to create some sort of progression in the game, none of the clues reveal any traps, secret areas, or rare treasures. (gamerassaultweekly.com)
We all enjoy progression in games, and many of us enjoy earning that progression even more. (thatvideogameblog.com)