Frogoon

Frogoons are creatures in Donkey Kong Country Returns and Donkey Kong Country Returns 3D. They are green frog enemies that follow the bidding of the Tiki Tak Tribe. Frogoons hinder the Kongs with attacks that involve jumping up and down in place. They can jump higher than usual by inflating their bodies. Donkey Kong can easily subdue Frogoons by jumping on top of them, causing them to deflate. Frogoons frequently appear close to each other in groups allowing Donkey Kong to defeat all of them in one fell swoop. If one looks closely, one can see that Frogoons sometimes try to catch and eat a small fly in-between jumps. A yellow sub-species called Hopgoon also appears in the game.

In Mario Kart 7, Frogoons appear as obstacles on DK Jungle, which returns as a retro course in Mario Kart 8 and Mario Kart 8 Deluxe. Here, they do not inflate at all, and only jump across the road, thus acting like Hopgoons. They cause racers to spin out and lose three coins if bumped into, but can be temporarily repelled with offensive items such as Green Shells. Frogoons make two consecutive jumps before turning the other way in Mario Kart 7, while in the latter two games, they only jump once.

Reference
Froschler