The frogs have the ability to summon rain, either making plants and mushrooms grow rapidly or destroying them. The green frogs allow the characters to access new areas of the jungle by growing plants, while the black frogs impede the characters' progress by making plants wither and die. The frogs are easily startled, and this causes them to activate their powers.
Team Chaotix have to avoid detection from the frogs during their mission in Frog Forest. This may require Espio to use Leaf Swirl to turn invisible, allowing him to sneak through the frogs undetected.
- The green frogs bear a strong resemblance to Froggy. This fact is pointed out by Big during Team Rose's mission.
- In two-player mode, the Green frog has brighter shading.
- After summoning rain, the frogs stay for a few seconds and jump away. If a Power Type character punches a giant frog, it jumps away immediately.