The Heavy Head is one of Headdy's eighteen Heads in the game, though not one of the most beneficial. It turns Headdy's head into a comically oversized metal squash with giant, cherry red lips, comepletely outweighing him ( despite the lack of neck ) and forcing him to crawl.
The Heavy Head is so weighty, that with it, Headdy is unable to run anymore, jump or attack. He moves by crawling ridiculously slow. If our hero happens to stumble upon this head by accident during a major battle, there's a chance he may take no victory. It is also non-cancellable.