It's theylive
The code for alien special operation levels are: 11 12 and 13 for the aliens.
The code is theylive. All one word. That only gets you one level.
There is no code that unlocks alien ops. You mainly have to enter 'theylive' all the time.
its 6734ghfe
Do you mean the alien codes you put in on LEGO MARS MISSION game? If yes, then no, the codes aren't invalid. By Jontypin
touch the crate near the rocket without getting killed
there is no code to alien ops you mainly have to enter 'theylive' all the time
NO
Lego Indiana Jones! or Lego mars mission!
aliens- astros- drill not theylive
1999
theylive is the code, but when you get to the menu, the alien special ops won't be clickable. P. S. try looking at the bottom of the game page at one of the pair of eyes! The code will pop up.