How to beat Raditz
Depending on how many sub-quests you have taken in the game so far, your level of expertise in fighting for Dragon Ball Z: Kakarot may vary. This could be one of your first fights or you could have a lot under your belt at this point if you've really explored the map. Either way, Raditz is your first real threat that you need to prepare for.
Before starting the fight, you will already be invited to eat the dish of boiled fish that Chi Chi prepared for you before. This will give you a little boost when entering the fight, which can already help.
The first part of the fight allows you to control Goku with Piccolo as a support character. Piccolo not only helps deal damage, but can also help take some of Raditz's attacks off, giving you time to power up. You shouldn't have too many problems here, just be careful to avoid Raditz's ki attack barrages. Speed up with X on PS4 and attack with melee attacks using Circle to deal a lot of damage, throwing a Kamehameha for good measure when Raditz is knocked out or directly in your line of sight.
After reaching a certain point, a cutscene will trigger where Piccolo says he has a plan, but forces you to distract him while he kicks in his new technique. This leads to the rest of the battle where Goku takes on Raditz solo. This is definitely where the difficulty increases, as Raditz is only focusing on you at this point.
Raditz is starting to use his super attacks now that he's got you one on one, with Double Sunday being particularly dangerous. This double beam attack has Raditz circling around trying to hit you with both beams, so just try to dodge it until it's over before returning to attack.
When Raditz tries to attack you with continual ki attacks, now is a good time to block and use your Vanish attack on him to appear right behind him and start lying in him. Sometimes he'll cover the arena with these ki attacks, so be extra careful. Whenever you see him start to glow red when you attack him, start backing up or he will hit you with one of his strongest attacks.
Since this is easily the longest fight you've had so far, you may start to lose health and worry about what to do next. This is what the Vitadrink item you received earlier is for, so use it in battle when your health is low if you need it.
As long as you're careful to watch Raditz's strongest attacks and don't extend your attacks to make yourself vulnerable too often, you should be able to take Raditz down eventually. Keep attacking and he'll be down for too long.
