Ryan Lodata from GamePlasma writes:
"Despite the game's easy difficulty, Grimm is an excellent example of a great episodic platform game. Grimm is completely free and provides hours of enjoyment. Grimm's dark, humorous graphics are a pleasant break from the norm and further encourage you to run around and dispatch all the cutesy things you can find. The added sounds further bring you into the game and leave you laughing throughout. Gamers will be hard pressed to find episodic adventures that can match the quality of Grimm."