Unlockables

  • Unlock Bonus Missions

    In each of the regular missions, you'll find three alien artifacts hidden throughout the level. Collect all three and complete the regular mission, and you'll unlock a bonus challenge.

    UnlockableHow to Unlock
    Bonus Mission ChallengesCollect all three alien artifacts in a regular mission, then complete the mission.

    Contributed By: discoinferno84.

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