Hol Horse vs Red Hulk

Pre-fight
Red Hulk is seen walking through a desert when he comes across Hol Horse.

Hol Horse: Is that a Stand?

Red Hulk: Red Hulk Kill cowboy!

Fight
Red Hulk runs over to Hol Horse and punches him in the face several times before striking his elbow into his face, knocking the Stand user back. Hol Horse summoned out The Emperor and shoots at Red Hulk. Red Hulk tries to punch the bullet away, but the bullet avoids the punch and it goes right through his skull, killing Red Hulk instantly.

Conclusion
The Emperor disappears along with the bullet and Hol Horse walks away.