Hmm... I don't recognize that Gundam.

Because it's a Huckbein, not a Gundam.

Why does the Huckebein look like a Gundam?

CHÆU said:

Why does the Huckebein look like a Gundam?

Probably because it's supposed to be a parody of the Gundams. The original designer of this mecha is none other than Hajime Katoki for Banpresto's Super Robot Wars, after all.