The Training Center was added on December 27th, 2014[1], and can be found at the Battle Center. The Training Center features plushie versions of Battle Center Baddies that a goatling can fight against to gain experience and level up faster. The individual baddies found here do not retire, drop loot, or grow HP like explore and battle center baddies, but they are tougher than them in battle.
Users are limited to 200 battles per day, with the count resetting back to 0 at midnight Goatlings time. A goatling can only fight a baddie if it is within the baddie's level requirement. For instance, if a goat is level 5, it cannot fight the Apostrophe training baddies which are limited to levels 1-4.
The training center began its revamp and expansion on May 30th, 2022 [2], after the release of the experience gain adjustment update [3]. On July 21st, 2022 [4], 5 new and revamped baddies were added, with their respective plushies also being added to the Random Events. On October 22nd, 2022, the next 5 baddies were added to the training center [5].
The full Training Center is still being worked on, with more baddies added in the near future.