Aliens and Motherships for a SNES Zelda game

[KingOfHeart]

I'm creating a little zelda game based off of Majora's Mask. Link will have three days to save the land from being destroyed by aliens.

So off the top of your head, can you tell me games with aliens(or looks like an alien)/motherships that would work for a Snes type setting? Could be GBA or sega, depending on how desperate I get.

Then I'll google it or search your site for the sprites and rip them if I like it.

edit: Someone linked me to here on another site
http://mmxz.zophar.net/rpg/evermore/bosses.html

Some of these could be used as aliens but can use more before I make up my mind.