Worthwhile 3DS Virtual Console games?

[Minto]

I've got £21 on my 3DS that I've never got around to using. I've downloaded Ghosts 'N' Goblins and Wario land 3, but I can't think of anything else worth buying.

 

[WiiAssasin]

If you haven't played them, get Link's Awakening if it's available. Some Metroid games would be a safe bet.

 

[Minto]

Links Awakening? Right then. I'll go it a go.

 

[Splash_King]

If you're enjoyin' the horrific difficulty of Ghosts 'n Goblins, ya might as well get Ninja Gaiden too.