Leopardon is the giant mechanical robot used in the Japanese version of "Spider-Man" named "Supaidaman". After beating the game "Black Tiger", Wade is allowed to choose a mechanical robot. He selected Leopardon as his choice. Later in the book, Wade uses his Leopardon in the Battle of Castle Anorak against the Sixers.
Appearance
It can be seen as a reward when finishing the Black Tiger video game.