It took me about a week to beat. But keep in mind that I'm really good at video games and that I spent almost every hour of my free time playing it, so it would take most others a lot longer to beat. The 3D here was very well crafted too, I don't think I had any of the trouble with it that I normally do, and the sprite based images mixed with 3D environments and backgrounds look really good in 3D. Also the Dialogue is well written and captures the Mario an Luigi humor that the series is known for.