Charge (heraldry) others, but the most frequently occurring of these are various forms of dragons. The "dragon", thus termed, is a large monstrous reptile with, often, a forked or barbed tongue, membraned wings like a bat's, and four legs. The "wyvern" and "lindworm" are dragons with only two legs. The salamander is typically shown as a simple lizard surrounded by flames. Also notably occurring (undoubtedly owing much of its fame to Napoleon, though it also appears in much earlier heraldry) is the bee. Animals' heads are also very frequent charges, as are the paw or leg ("gamb") of the lion, the wing
Wyvern (video game) Yegge stated that he was working on rebooting Wyvern, although there were legal issues in the process of doing so. In April 2013, Yegge, having received clearance from Google to use Wyvern as a side project, announced his vision of a cloud-based Wyvern initially to be brought back on a mobile platform. In December 2016, Wyvern was re-released as an iOS game, with Yegge as the sole owner of the game after two years of negotiation with Wyvern's original owners. Now Wyvern is available for public play on iOS Appstore and Google Play. A PC version is in work. Wyvern