Fusion is a mechanic inCassette Beaststhat players can use to temporarily combine two monsters in battle. While it is possible to complete most combat encounters without performing this action, fusion can be quite helpful in fights against the game’s more-difficult foes. Indeed, players that find themselves struggling against a challenging opponent are advised to incorporateCassette Beasts’fusion mechanic into their strategies, and this guide is here to explain how that is done.
Cassette Beasts: Fusion Explained
The first step toward performing a fusion is to partner with a companion that has aRelationship Levelof at least one. For the uninitiated, Relationship Level is expressed asheartsbeneath the companion’s name in the party menu, andJRPGfans will earn a partner’s first heart upon completion of theirintroductory quest.
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As a brief aside, Eugene’s introductory quest, which is titled Acting On Your Best Behavior, is actually quite long. Indeed, players will need to make some fairly significant progress in order to complete the quest, earn Eugene’s first heart, and make fusion a possibility when he is serving as partner. Fans ofmonster collecting video gamesare thus advised to leave this companion on the bench during the early stages of the game, as losing the ability to fuse is a real disadvantage.
Once a player is partnered with a companion that has a Relationship Level of at least one, the next step is to fill theirFusion Meter. Here are details on ways to perform that action, and the meter can be viewed in the top-right corner of the party menu:

After the Fusion Meter is filled, players can perform a fusion in any battle by pressing theFuse buttonon the right side of the tape recorder. This will cause the twoCassette Beastsmonstersthat are on the battlefield to combine into a single monster, and it will have these properties:
One final thing to mention is that players can strengthen their fusions by increasing their Relationship Levels with the various companions. This allows fusions to become even more potent as fans work towardbeatingCassette Beasts, provided that they put a bit of effort toward earning additional hearts.
