Continuity mistake: When Jack is being chased and the guys in the red pick up truck are throwing dynamite at him, they throw one that hits a parked car just as Jack makes a hard left turn. The next shot has the car exploding and Jack having made a hard right turn.
Revealing mistake: After Slater jumps out of the house and it explodes, when the cop car flips over, the air ram used to flip it over is visible.
Answer: It's "What the Hell Have I?" by Alice in Chains. Megadeth's "Angry Again" is what is played for the opening credits of "Jack Slater IV."
Phaneron ★