Mastering naval combat in Like a Dragon: Pirate Yakuza in Hawaii hinges on upgrading your Goromaru's cannons – the most potent weapons in your arsenal. This guide details how to enhance these crucial tools and dominate the seas.
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Chapter 2 introduces Honolulu and Madlantis, the game's primary hubs. Exploring these areas and recruiting crew members is vital for ship upgrades and story progression. During the main quest, you'll meet Julie, the GearWorks mechanic in Honolulu (and a potential crew member!). She upgrades the Goromaru and its weaponry, including cannons.
Cannon upgrades require various components obtained by defeating enemies. These fall into four categories:

Speak to Julie, select your desired cannon, and watch it get a power boost. Equipped cannons can be managed in the ship's crew formation menu.
Shark Cannon

The Shark Cannon boasts elemental damage and a fast reload, but its damage output is relatively low. Consider prioritizing more powerful cannons initially, perhaps acquiring this one later to recruit Julie.
Egesta Cannon

This cannon delivers consistent damage over time, making it a strategic choice. Its dual-shot functionality compensates for its slower reload.
Laser Cannon

The Laser Cannon is a top-tier weapon. Save your resources for its upgrade; its devastating damage and high power more than make up for the slower reload. It's ideal for quickly dispatching weaker ships and significantly damaging bosses.
Super Laser Cannon

The ultimate cannon upgrade. Requiring rare components, it becomes available later in the game. Its superior range and immense power make it invaluable for tackling challenging battles, particularly in the Pirate Coliseum and against the Devil Pirates.
That's how to upgrade cannons in Like a Dragon: Pirate Yakuza in Hawaii. Set sail and conquer the seas!
Like a Dragon: Pirate Yakuza in Hawaii is available now on PlayStation, Xbox, and PC.