Thundercats

Thunder............. Thunder................. Thundercats.. Hooooo!!!!!!!!!!!!!

If you ever watched the Thundercats when you were a kid you need to watch this:

http://www.ebaumsworld.com/flash/thundercats.html

 

Why couldn't the Evil Mummy Guy stay in his " bad-ass-super-mummy-on-steriods" form ( where he would regularly kick the thundercats' asses), instead of switching back into regular-skinny-mummy when they were down ( where they would come back and smash him )?
Was he just showing off like that snowboard chick ?

 

I've never even heard of Thundercats, let alone watched it/them. Therefore, I feel exempt from the obligatory and compulsive behavior of seeing what I've been missing, the "grass is always greener syndrome" of watching it now.

 

If I remember right he had to do that to rest and regather his strength.

 

I think what happened was if he saw his own reflection in a mirror then it weakened him or made him run away or whatever.