Corridor 7 cd
 

Ok I beat Corridor 7 but i don't know how to play the extra levels that come with the cd version of the game if anybody know that would be great

Level 30(?):
In stead of destroying the vortex go through it, it will give you access to the alien homeworld levels.

Yeah I kill the Vortex and the game so I should go into it thats what your saying