Megaleg is a robotic boss that first appeared in Super Mario Galaxy where it was being controlled by Bowser Jr. there are also 2 similar characters called Digga-Leg & Brakaleg.
We Rebuilt You Just For A No-One-Knows-What To Destroy You Again? ...Wow!
Megaleg is rebuilt in Godzilla vs. Bowser. This time he is Ludwig's minion and the world 7 Fortess boss.