Gotcha, known as Gotch (ガッチ) in Japan, is an enemy Badnik encountered in Chaotix.
This Badnik is found throughout Speed Slider. When the Chaotix reach a certain position in the level, it will come in from beyond the screen and land above the nearest character. If it grabs a character, he will be surrounded in a green ball that will suck away the player's Rings one per second. When this happens, it only can be destroyed by the other character, as it follows the movement of its victim.