Unlock the roster through G-Force Lab research
Unlock the remaining monsters by completing their G-Force Lab Rumors, selecting the resulting Research Projects and earning Research Points until those projects finish. Heisei Godzilla, Anguirus, Megalon and Gigan are available from the start; the other fighters need progression for normal solo and online selection.
Treat each Rumor as the condition that reveals research, rather than the final character reward. A completed investigation can leave you with a new Project that still needs match-earned points. If you only want to try the entire roster with friends, Tournament Mode provides a separate route for local Custom Battles.
Check your starting roster and goal
- Starting fighters: Heisei Godzilla, Anguirus, Megalon and Gigan are initially selectable.
- Research fighters: Godzilla 2000, King Ghidorah, Rodan, Mecha-King Ghidorah, Kiryu, Showa Mechagodzilla, Destoroyah and Orga require progression.
- For permanent progression, use the Rumors and Research Projects in G-Force Lab.
- For immediate local Custom Battle access, enable Tournament Mode in Settings.
Turn a locked fighter into a completed project
- Open G-Force Lab from the main menu. This is where you can inspect Rumors and Research Projects instead of guessing which victory will award your next character. Begin by finding the branch associated with the fighter you want.
- Complete the investigation conditions on the relevant Rumor in single-player. Rumors reveal further Research Projects when their objectives are met. Follow the objective shown in the lab so your matches contribute to the condition you actually need.
- Select the newly available Project as your active research. Only 1 Project can be active at a time, and earned research points go to that selected Project. Check the selection before starting a long session of matches.
- Play matches to fill the active Project's research bar. Match results contribute Research Points toward the selected reward. Use the results breakdown to check that you are advancing the research you intended to complete.
- Finish the Project and inspect the resulting unlock. Some milestones reveal another Rumor or Project rather than immediately granting a fighter. Continue through the newly revealed requirements until the character reward is complete.
Requirements for every research fighter
Use these requirements to choose a branch and identify the next objective to pursue. After meeting a listed condition, return to the lab and finish the associated research. Keep the final character unlock separate from the milestones that expose its Project.
| Fighter | Requirements to work through |
|---|---|
| Godzilla 2000 | Complete the Millennium Study Project. |
| King Ghidorah | Complete The Three-Headed Dragon Rumor and clear Adventure Mode twice, then finish the associated research. |
| Rodan | Complete the New York Rumor, unlock 8 battlefields and defeat 4 opponents in Survival, then complete the resulting research. |
| Destoroyah | Complete the New York Rumor and unlock 8 battlefields, then finish the associated research. |
| Kiryu | Complete the Cybernetic Study Project. |
| Mecha-King Ghidorah | Complete The Three-Headed Dragon Rumor and the Cybernetic Study Project, following the related research through to the fighter reward. |
| Showa Mechagodzilla | Complete the New York Rumor and Alien Investigations Project, raise all 4 starting monsters to Level 5, and unlock additional battlefields. Finish the research revealed along this route. |
| Orga | Complete Doppelgänger Research and Alien Investigations, raise all 4 starters to Level 7 or higher, and win 8 one-on-one matches as Gigan or Megalon. Complete the remaining research for the reward. |
Choose matches that advance your next requirement
Use Adventure when you need both character experience and Research Points. This is particularly useful while raising the starting monsters for the longer character routes. Survival earns research progress but does not grant character experience, so it serves a different purpose when leveling is your immediate obstacle.
Keep arena research in your plan when pursuing Rodan, Destoroyah or Showa Mechagodzilla. Their requirements include battlefield unlocks, so focusing exclusively on monster Projects can leave another condition unfinished. Choose your preferred fighter first, then use its requirements to decide whether your next session should focus on leveling, research points or battlegrounds.
Keep Rumor investigations separate from Research Point earnings. Local and online matches can contribute points to your selected research, while Rumor investigations use single-player conditions. Earning points in multiplayer therefore does not replace a separate investigation objective.
Try everyone locally with Tournament Mode
- Enable Tournament Mode in Settings. The toggle opens the full monster roster for Custom Battles, letting you try fighters before choosing your next research target.
- Start a local Custom Battle. The fighters exposed by Tournament Mode are available there, providing a way to experiment with friends without completing their research first.
- Return to G-Force Lab for normal progression. Tournament Mode access does not replace the research required for solo and online character selection.
When a fighter or the entire roster stays locked
- If the Project is missing, check the relevant Rumor and complete its single-player investigation conditions.
- If the Project is visible but not advancing, confirm that it is selected as your active research.
- If a completed Rumor did not grant the fighter, inspect the newly revealed Project and finish its research bar.
A completely locked roster needs a different check from an unfinished character branch. The November 4, 2026 Steam hotfix fixes a problem where corrupted save data could leave every character locked. Install the update before treating that total lockout as ordinary research progression, then check your roster again.