Gold Klagen
From Sonic Retro
Gold Klagen (ゴールドクラゲン) is an upgraded version of the regular Klagen and an enemy in Sonic Heroes. They are found in BINGO Highway for Team Chaotix, Bullet Station for Team Sonic and Chaotix, and finally in the aformentioned plus Casino Park and Lost Jungle for Team Dark and Super Hard mode. Additionally, they are found in Robot Storm for Team Sonic and Dark.
Like their normal counterparts, Gold Klagen's a jellyfish-like robots that grab the player's teammates. What makes the Gold Klagen more dangerous then its predecessor is its ability to travel through dimensions. If a teammate is not rescued quickly enough, it will warp to another dimension and take the teammate with them. This removes him/her from the team completely until a Team Blast is used. Though they have the same defence (6HP), they award 400 points when destroyed.