80s-90s Sci-fi/Horror Movie - Aliens included!

[SilkwormXL]

Ok, I've got another childhood movie that I can't seem find on the net anywhere.

I don't remember much at all about the plot.  I remember there were some sort of large hostile aliens, that (I think) preferred being in tunnels or underground.  The biggest hint I can think of was the aliens had some type of energy weapon built into their arm, and it was fueled by copper... I believe.  I just remember there was a kid at one point that discovered you could load the alien weapons with a penny.  I seem to recall the aliens using long "bricks" of copper usually to fuel the weapons.

Also there was some kind of helpful alien that looked sorta like a ninja.  In all black.  Don't remember if he had weapons or anything... at least I think he was in this movie, hope I'm not confusing it with something else. 

Thanks for any info 

[Rayo Casablanca]

Alien penny gun is surely Tobe Hopper's Invaders from Mars remake.

[SilkwormXL]

Ah yes, this is it, found a few clips/trailers on YouTube.  Thanks 

I was totally off with the ninja-looking alien.  Any clue where he may have been from?  I seem to recall him having glowing eyes, all black, and at some point he gets wounded in the movie.  I think he was part of an alien group, but all of his aliens friends had different looks.  They were friendly with people, and if I remember right, they were helping humans with an evil alien race.  I'm pretty sure this was a late 80's / early 90's movie.  Least that's when I saw it.

[Andrew]

Even a review here:

http://www.badmovies.org/capsules/i/invademarst/

The alien ninja one sounds interesting.  The action took place on Earth?

[SilkwormXL]

Yup, took place on Earth.  The time frame was period (seem to remember black/white police cars, regular clothing on the humans).  Think there was a scene when the ninja-alien (I don't recall him actually using martial arts or anything, he just kinda looked like one) being injured and brought into a house.  And I don't think he was wearing clothing to give the ninja image, kinda looked like it was his regular skin.  Could be wrong.

EDIT:  Heh, this alien from your link looks a LOT like Krang from Teenage Mutant Ninja Turtles fame.
http://www.badmovies.org/capsules/i/invademarst/invademarst_cap2.jpg

[tommex84]

A word for the moderator

problem/post SOLVED

[akiratubo]

Your movie about the alien "ninja" could be I Come in Peace.  It's about two aliens, both really tall.  One is blonde and harvesting dope from people's brains.  The other is dark haired and is a cop tracking the dope dealer down.  He gets injured, tells the human good guys what's going on, and gives them a weapon.  His eyes didn't glow, but they were very bright white with yellow (or light blue) irises, could have been mistaken for glowing compared to his dark hair and costume.