The Bionicle series seemed to be the most popular one back when I was a kid. This was my very first set:http://images.brickset.net/wallpaper/Bionicle%20(2003,%20Rahkshi)/rahkshi-lerahk-1280.jpg (Unsupported image host)

When I was a kid I had nightmares about the Pirakas XP

[QUOTE=Pimpsy G.;363745]If bionicles count, the blue Bohrok was my first lego set. I remember it vividly.

I used to hit my cousin with my red Bohrok. That made my aunt really mad.