It's a nice little 2D platforming Flash game with lo-fi graphics, which, in substance, has you controlling a girl who has to collect red gems scattered around the world.
The distinguishing feature of the game, as suggested by the title, is leveling up your abilities by simply performing actions in-game: running a lot will make you run faster, jumping often will make you jump higher and reach new places, and so on. There are lots of stats to level up, and also special abilities ad power-ups to acquire by using the gems you've collected. You don't have any weapons, and can only avoid the enemies around you.
There's a twist to the game mechanics however: when the day ends, the girl goes to sleep, and has to "fight" a powerful enemy, and if she loses, all her levels will drop back to 1. Checkpoints and % of explored map will however be recorded, together with the log of all places she's been to and people she's met. Getting 100% completion will net you a demo of the sequel, which is a different kind of game.
The story is cheesy in my opinion, but that doesn't detract from the gameplay.
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