Feathered Skink: Despite its appearance, the Feathered Skink is not actually a dinosaur, but a giant skink. The largest of its kind, the Feathered Skink is a fast but tamable creature that uses its elaborate crown of feathers to intimidate rivals and predators and its dagger like teeth to take down prey. Mechanics: A Feathered Skink can be seen heavily injured in the Frozen Caves, in which the player can choose to either save him or continue to go on their way. Either choice will NOT affect the ending. If the player chooses to save him, he will become rideable and help fight off enemies. Wild Feathered Skinks are hostile and will chase the player. They will run away when an ice bomb is used, however. Polar dropper: Deadly carnivores of the cave, polar droppers are arctic variants of acid spitters, but they hunt in an odd way: they pick up their prey and drop them onto something they know will finish them off. Mechanics: Will sometimes pick up the player to try and drop them onto something that will instantly cause a game over. An ice ball will scare them away. Ice Hangers: These guys aren't actually one animal, but a colony of separate animals working together. An ice hanger can be found sticking itself to the roof of the cave, dangling its tentacles downwards. Once something touches the tentacles, they grab them and pull them towards the main body. Mechanics: Will spawn at the cave ceiling and grabs the player if they touch the tentacles, giving them 4 seconds to type in certain keys to break free. The tentacles will retract for 3 seconds when an ice ball is used. Snow Slug: A slug perfectly adapted to life in the Ice Cave. Legend has it that if this slug is consumed, the consumer will begin to go slightly faster in water but at a cost... Mechanics: If eaten, this will allow the player to swim faster in water, but they will gain the freezing debuff. Ice Tongue: A gigantic apex predator, it is the larger version of the Bloof. It usually camouflages on the cave walls, waiting for prey to come close. Once that happens, its tongue will grab the prey to be consumed. Mechanics: The boss of the Ice Cave (Optional). Before that fight, it will litter around its fur. Collect these to craft an Ice Ball.
If you want, you can rename the Feathered Skink into Nanotyrannus. That was its original name after all. I will make the Ice Ball soon if these get in.
