I saw that on a t-shirt.

Ya, it's from ChopShop T's.

They have an alien one too.

so now is name the alien ?

ONE OF THE MOONINITES
MARVIN THE MARTIAN
ZOIDBERG
KANG OR KODOS
A METROID
ALF
ONE OF THE CONEHEADS

Dudes, make a new thread for this one. We still have to finish naming all the robots.

Ya, I wasn't inviting submissions. Just pointing out the image origin. Besides, they have a complete list on their site.

Ah crap I really wish I'd read that before spending 10 minutes attaching numbers to all of of the aliens in that picture :(

Since this isn't going anywhere, are we now allowed to use googling powers?

SPACE INVADERS >:

I see:
Elite(Halo)
Spock
Silver Surfer
Martian(Mars Attacks!)
Langolier
Galactus
Great Gazoo
One of the YIPYIP alien from Sesame Street(I forget their names)
Possibly the alien at the top of the waterfall in Contra

Also, another interesting shirt they could make would be "Name the Ninjas", where the shirt is entirely black.

Seeing as how there are probably going to be plenty of guesses on this one I may as well post the numbered version:

I know many of these have already been listed but I'm a jerk like that.

1. Ignignokt (ATHF)
2. Xenomorph (Alien)
2.
3. Predator
4. Yip-Yip Alien (Sesame Street)
5. Silver Surfer (Marvel Comics)
6. Marvin the Martian (WB Cartoons)
7. Starship Troopers Bug Warrior
8. Kang or Kodos (The Simpsons)
9. Galactus (Marvel Comics)
10.
11. Figrin D'an or another member of the Modal Nodes (Star Wars)
12. Tribble (Star Trek)
13.
14. Diva Plavalaguna (The Fifth Element)
15. Howard the Duck (Yeah, that guy)
16.
17. E.T.
18. Elite (Halo)
19. Klaatu (The Day the Earth Stood Still)
20. Galaxian dude?
21.
22. Space Invader
23. the Great Gazoo (The Flintstones)
24. Mr. Spock (Star Trek)
25.
26. Martian (Invaders From Mars)
27. The Crawling Terror
28. Nibbler (Futurama)
29. Independence Day Alien
30.
31.
32. Cigarette Smokin', Coffee Drinking Alien (MIB)
33. Langolier (The Langoliers)
34.
35. Martian (Mars Attacks!)
36. Mork (Mork and Mindy)
37. Invader Zim
38.
39.
40. One of the Coneheads
41.
42.
43.
44. Dr. Zoidberg (Futurama)
45. Alf
46. Admiral Akbar (Return of the Jedi)
47. Greedo (Star Wars)
48.
49. Metroid

CAN WE BAN THIS GUY FROM FUTURE EVENTS LIKE THIS? >:

The numbered list wasn't up yet, so I'd thought that I'd start it. You can go back and add numbers to your previous posts and I'll add them to my list but I doubt anyone is going to go back through the past page and figure out which numbers go with which aliens which have been posted. You can do it if you really want to.

2. Alien
5. Silver Surfer?
7. Starship troopers?
32. Men In Black

49. Metroid
3. Predator?
37. Invader Zim?
28. Those little green martians from Toy Story?

14. Singing Diva from The Fifth Element.

I think 28 may be Nibbler from Futurama

I think your right. Isn't 20 from the game Galaxian

I'm pretty sure 27 is the Crawling Terror

2 is listed twice in that picture.