Go learn the CAGED system, it'll help you figure out these things in the future.
It basically gives you the 5 Pentatonic shapes that you can use over each chord in the pentatonic (E Minor Pentaonic for Em, etc.)

It also outlines the relative minor shapes to major shapes aswell.

If you know the chords, then learning the scales is almost as easy.
Sounds mainly pentatonic to me, with maybe some extra notes for spice
Quote by AlanHB
It's the same as all other harmony. Surround yourself with skulls and candles if it helps.
TS as you start learning theory, you'll find that most songs are in either major or minor keys, and they use major and minor scales. This song is no different.
And no, Guitar Hero will not help. Even on expert. Really.