Song: Super Mario Brothers Theme.
Game: Nintendo Super Mario Bros.
Tuning: Standard.
Tabbed by Jake6293.

e-0-0--0-0-3-----
B-------1--------
G-------------0--
D----------------
A----------------
E----------------

e----------------0--3-5--1-3--0------
B-1----------------------------1-3-0-
G--0---2--4-3-2-0--------------------
D---2--------------------------------
A------------------------------------
E------------------------------------

e-3-2-1-0----------3-2-1-0--8--8-8-
B------4-----1-1-3------4----------
G---------1-2-2--------------------
D----------------------------------
A----------------------------------
E----------------------------------

e-3-2-1--0-----------------------------
B------4--------1-1--3----4-3-1--------
G------------1-2-2---------------------
D--------------------------------------
A-------------------------------3-3--3-
E--------------------------------------

e-0--------1-1----5-5-5-3--1-0----
B--1-------------0-------------1--
G---0--1--2----2------------------
D---------------------------------
A---------------------------------
E---------------------------------

e-------------0---------1--1-----1-1-1--0-----
B----------------1-------------0----------3-1-
G-2--0------------0--1-2----2-----------------
D---------------------------------------------
A---------------------------------------------
E---------------------------------------------

Level 2:

e---------
B---------
G---------
D--9-6--7-
A---------
E-7-4--5--

e-----------
B-----------
G-----------
D--5---2--3-
A-----------
E-3--0--1---

e-----------------------------------------
B-----------------------------------------
G-----------------------------------------
D-------------------------4-5-6-5-4-------
A-6-5-4-3--6-5---4--3-5-6----------6-5----
E-------------4-3---------------------4-3-

That's it. Enjoy.