Thrudgelmir

Weight at 405 tons, it's a very powerful mech piloted by Wodan Ymir in Original Generation 2. It was also piloted by Zengar in Alpha Gaiden. The mech was the result of a Grungust Type-3 being transformed by Machine Cells, making it capable of regenerating damages. It's famous Zankantou attack by Wodan Ymir in Original Generation 2 left Kyosuke Nanbu and Tasuku Shinguji helpless. In the PS2 version of Original Generation 2, it gets new attacks, one of which is the Cosmic Sword that cuts through stars.