Fusion Gone Wrong: Defense
Merge heroes. Roll the dice.
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About
Drag fantasy heroes together and see what the fusion brings: a great success, an ordinary success, or a wonderfully strange botch.
Matching heroes gain stars. Mix different classes to discover new heroes, then arrange your team while waves of monsters advance. Even a failed creation can have a useful quirk.
Explore five regions and 50 stages, face bosses with different patterns, and fill your hero codex. Research and hero levels help you build a stronger team.
Daily missions, a daily challenge, and endless mode give you more combinations to try. Optional rewarded ads are available when you choose them.
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What's New in Fusion Gone Wrong
0.1.4
October 21, 2026
Experience your first fusion sooner with a shorter introduction. Fusion retry, revive, and double-reward ads stay hidden until your first stage clear. See a next goal after winning, with improved small-screen layouts and resume behavior. Optional usage analytics starts only after your consent.
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