First Base came out-of-the box set with original response that uses a half spec bearing. You just had to adjust the length of your string before you began playing. Original response, also known as tug response, lets you perform traditional yo-yo tricks such as Walk the Dog, Rock the Baby, Around the World, Brain Twister and many more.
The yo-yo also came with a full spec, size C Center Trac bearing for dead response play and longer sleep times.
The Dino Egg version was a limited release from around August 2016.
