this is the tune that plays on the stage select screen in megaman x.
Play it with a lot of distortion!

e-------------------------------------------------------]
b-------------------------------------------------------]
g-------------------------8-6---------------------------]
d---6-8-------------6-8---8-6---------------------------]
a-8-6-8--4-6-4----8-6-8---------------------------------]
e-8------4-6-4----8-------------------------------------]

e-------------------------------------------------------]
b-------------------------------------------------------]
g-------------------------6-8-6-------------------------]
d---6-8-------------6-8---6-8-6-8-6-8-------------------]
a-8-6-8--4-6-4----8-6-8---------8-6-8-------------------]
e-8------4-6-4----8-------------------------------------]

And just repeat it!