User blog comment:Vorknkx/Easter Egg Hunt/@comment-3547390-20120307204741/@comment-1496755-20120308085118

Ah yes, the HIP3M1 thing was something like "The Levelord is impressed" - when you find the other way to get to the top of the tower.

I'm not sure about this mines thing... but I remember some hidden message in the next level (Research Facility). I will investigate this further and capture it on screenshot :)