This page gives a detailed analysis of the Bad Frogger enemy found in Old Armorica Road.
Enemies will be added to your Combat Notebook upon encountering and defeating them in battle. However, the info provided is pretty barebones, but more information will be added as you fight more. If you use a Battle Scope or Tio’s Analyze Craft, then you will unveil all of the information on that particular. When you have fully unlocked the info on a particular enemy, you will see a red checkmark next to their entry in the Combat Notebook. It’s generally easier to use the item or Craft, since there are plenty of enemies you only encounter once. You will need check marks for every single enemy in the game in order to unlock The Usual Suspects trophy/achievement.
A rare amphibious biped that steals from humans and hides their belongings. The Bad Frogger is another rare enemy that cannot be found walking around on the map. Instead, you will need to do battles with Helmet Hunters until you finally get one to show up. For more information on how to find this elusive enemy, visit the Where to Find Bad Frogger page. Note that this enemy is immune to wind-based damage, but weak to earth.