This game is truly amazing. every playthrough is different, and replayability is very high as well. The box features a poster that although awesome looking, may be a bit too creepy to hang on a wall, and a booklet by Edmund Mcmillen that explains much of his inspiration for the various bosses and enemies in the game. Sadly, though, the game does not include the 'Wrath of the Lamb' DLC, and this needs to be bought extra through steam. The game still is amazing without, however!