The New Guinea Bush Frog (Asterophrys turpicola) is a frog after my own heart. Native to Papua New Guinea and Indonesia, this frog isn't a pushover.

If it's threatened, it will inflate itself and gape its mouth--all the better to expose its blue tongue. If that doesn't drive off the predator, then the frog attacks. It'll leap at its foe and latch on with.

Source
Photo source: vespadelus