01 Oct 22
06 Oct 22
19h 59m

A Really Big Deal achievement in Prodeus

A Really Big Deal

Finish A Level With 100% On Hardest Difficulty

A Really Big Deal+5.6
04 October 2022 - 2 guidesOffline Game ModeSingle PlayerDifficulty Specific

How to unlock the A Really Big Deal achievement

  • AbogeAboge317,523
    24 Sep 2022 24 Sep 2022 09 Oct 2022
    17 6 14
    Easy to do on a level called "Memoriam" since it's short and the hardest difficult is not really that hard. Just make sure you have full ammo when entering the level. There is only one secret in the mission and that is to shoot at a lower platfrom from the edge of the arena. you can open the map and look where the lower platform is. Memoriam is the sixth mission from left path

    NOTE: if you set your difficult to ultra hard at the start of the mission you need to restart the mission from the pause menu.
    Easy to complete with
    ProdeusSecret AchievementAbogeThe Secret Achievement achievement in Prodeus worth 133 pointsContinue playing to unlock this secret achievement

    EDIT: players have confirmed this has to be done deathless!

    Memoriam secret:

    Guide not helping? View 1 more guide for this achievement.

    Showing most recent comments. View all comments.
    Har MiggidoAnd the video isn't even played on ultra roll
    Posted by Har Miggido On 10 Oct 22 at 15:43
    Aboge"And the video isn't even played on ultra"
    The video is purely to show where the secret is in the level as stated in the solution
    Posted by Aboge On 10 Oct 22 at 16:23
    BRiT wtfdotcomDid this but no achievement popped.
    Posted by BRiT wtfdotcom On 21 Oct 22 at 21:03
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  • Visions of GoreVisions of Gore1,055,448
    03 Dec 2022 03 Dec 2022 03 Dec 2022
    3 0 0
    After trying and failing multiple times on level 10, I did it on level 1 "Sacrum". I did this after beating the campaign.
    Set difficulty to "Ultra Hard". Make sure you have full ammo (play the trial levels to fill ammo on whichever gun you need ammo for). Go slow, and remember that you need all kills, all 5 secrets, and you cannot die. I used the pistol on single zombies, the auto shotgun or shredders on multiples or shotgun guys, the auto shotgun on the imps (if they were close, if they were far away I used the zoom shot on the chaos gun), and the rocket launcher on the flying fat things. Remember that there is a switch on a half wall about halfway through the level that you push to drop a wall revealing 2 shotgun guys. Also check your automap periodically to make sure you aren't leaving badguys behind, this level is quite linear.

    This will also unlock
    ProdeusSecret AchievementVisions of GoreThe Secret Achievement achievement in Prodeus worth 133 pointsContinue playing to unlock this secret achievement

    Here is the link to the collectable guide by ShadowEchelon91
    ProdeusSecret AchievementThe Secret Achievement achievement in Prodeus worth 895 pointsContinue playing to unlock this secret achievement

    And here is the part from THEIR GUIDE (I'm trying to give them full credit) that pertains to this level.
    1/5 After you fall down into the area with the partially opened door and collect the nexus point, the next room has what looks like 3 beds or tables. The door next to them can be interacted with to reveal a secret.
    2/5 At the red key elevator, climb on top and jump over the nearby glass wall.
    3/5 Immediately after secret 2, head outside and jump on the rocks next to the left and then again into a small area with armor.
    4/5 Right after collecting the Shredders, drop down and turn around. There is an intractable door here with a faint "interact" symbol on it. Open it to reveal a secret ore.
    5/5 After collecting the red key, immediately go left to find a ramp. Follow to the end for secret.

    Good luck!
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