D-Horse is your default Buddy in the game and an excellent form of transportation, making it extremely easy to get from one place to another. There isn't much more to D-Horse other than that transportation factor, though, as the only extra command that it can gain is making it poop on command, which will make light vehicles spin out of control should they hit said poop.
Despite that, if you're looking for pure speed, then D-Horse is the perfect Buddy for you. Note that with a press of the stance button, you can hide on the side of the horse, allowing you to pass through a guardpost without fully alerting the enemies (there will be the white alert bar). Once you max your bond with the D-Horse, you will be able to customize his color.
|Name||Rank||Item/Skill Req.||Unit Level Req.|
|Battle Dress||2||50K GMP||R&D (5)|
|Battle Dress||3||150K GMP, Electrospinning Specialist||R&D (15), Combat (15)|
|Battle Dress||4||350K GMP, Materials Engineer||R&D (29), Combat (29)|
|Furicorn||4||410K GMP, Man on Fire (Corpse)||R&D (35)|