The Gamma Crush
The Gamma Crush is the best weapon that the Hulk has. The easiest way to execute the super is with an air combo: D + FP then enter into the Gamma Crush. But becareful for if your opponent blocks it, it will leave you open for attack. You should try to vary this strategy by using the vertical Gamma Charge instead of the Gamma Crush
Chipping Away Your Opponents Energy
The Hulk's standing FP and RK do tremendous chipping damage. The only problem is his recovery time after these attacks are slow. so after launching the attack, cancel it with a Gamma Wave or a Gamma Charge.
Hulk's Armor
Similar to Juggernaut the Hulk can absorb up to 2 JP or 1 FP before he becomes vulnerable. Suppose you dash toward your opponent and you try to land a combo but he start his ground combo first. Their combo will be interrupted by your punch from the Hulk. Learn to find this delay and you will be able to gain the advantage. Using the Hulks JP helps since it's difficult to counter. Wait for him to absorb the hits and continue with your combo.
Short Air Combo
He has a basic air combo to execute try to expose the opponent with a JP or SK then follow with D + FP followed by Jumping UP and Forward and hitting JP,SK,FP.