Hey this tab is alot like the mario bros underground theme.

Mostly through out the whole song the riff is just

Riff 1

G|-----5-----2-----3-----4--|
D|--------------------------|
A|--3-----0-----1-----2-----|
E|--------------------------|

Riff 2

G|--------5---------5--|
D|------5--------5-----|
A|--333------333-------|
E|---------------------|

Riff 3

G|---------------|
D|---------------|
A|--3>-1>-0>-----|
E|-----------4>--|