Earth Defense Force 2017
Successfully complete all missions on the Inferno difficulty setting to unlock the Genocide Gun.
Successfully complete all missions on the Hardest difficulty setting to unlock the PX50 Bound Shot.
Successfully complete all missions on the Hard difficulty setting to unlock the Y20 Impulse.
Successfully complete all missions on the Normal difficulty setting to unlock the ZE Launcher.
Successfully complete all missions on the Easy difficulty setting to unlock the Zero Laser Rifle.
Walk to the water and swim. Let all the ants gather around you. Eventually you will be able to walk on top of them and they cannot attack you. Just run around and shoot at your feet and they will eventually die. You can do this on the Inferno difficulty setting and get the mega powered weapons early.
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- All Stages Cleared - Easy (50 points): Acquired after clearing all stages in Easy mode.
- All Stages Cleared - Normal (100 points): Acquired after clearing all stages in Normal mode.
- All Stages Cleared - Hard (150 points): Acquired after clearing all stages in Hard mode.
- All Stages Cleared - Hardest (200 points): Acquired after clearing all stages in Hardest mode.
- All Stages Cleared - Inferno (300 points): Acquired after clearing all stages in Inferno mode.
- All Weapons Acquired (200 points): Awarded after acquiring all the weapons in the game.
- All Stages Cleared - Normal (100 points): Acquired after clearing all stages in Normal mode.