Mega Man X
Console icon SNES/Super Famicom

  • In Sigma Fortress 3, Reach D-Rex deathless and without recovering HP [Don't Switch Weapons, No Secret Technique]

    1,469 (1,024) of 16,069 โ€“ 9.14%

    6.37% of players have earned the achievement in hardcore mode
    9.14% of players have earned the achievement in softcore mode
  • Created by GalacticSpear on: 19 Nov, 2017 16:19
    Last modified: 17 Oct, 2022 01:10


    Recent comments

    (See all 74)

    NMZ 21 Nov 2022 04:05
    heads up, didn't trigger for me on the msu-1 version, the achievement still shows as active when you're fighting D-Rex which I assume expected me to kill too? but of course, he obliterated me. Switching to the regular rom gave me the achievement upon entering the room
    DEATHDragon 19 Dec 2022 14:08
    Holy shit, that was intense. I liked it! Good work on this cheevo.
    HUNTERXz 19 Mar 2023 20:21
    Easy achievement to obtain just don't pick up any health pickups and/or use special weapons fully armored its a cake walk
    AlexanderZ640 24 Dec 2023 01:22
    I was doing this achievement and didnt remembered that the page fell down some days ago, so the emulator didnt registered it :(
    Edgarmcfly 9 Jan 2024 02:10
    EZ !
    guiretrogamer 12 Feb 2024 20:29
    I tried, no HP recover and also only buster but its not triggering. Cheats are allowed, like infinite health?
    Moshe613 19 Mar 2024 20:31
    Hint: Disable L and R buttons in Snes9x Input Configuration window.
    SirVector 9 May 2024 00:14
    After several days, a few hours and a lot of patience I managed to get this achievement. The one that gave me the most work was the blessed Octopus, which took a good part of life and almost couldn't reach Mammoth.
    Incredibly, I reached him with just two health traces and managed to defeat him, finally!
    salvadorbastard 12 May 2024 18:14
    For those struggling with Sting Chameleon, if he goes into the middle of the arena, jump above his tongue strike and he will move to his next phase. Almost got him damage less but got hit by a few roof spikes but they only do a unit of damage each (with the chest upgrade).
    I found not jumping for Launch Octopus helped his section, other than jumping for a charged shot when he finishes his whirlpool tornado attack.
    LeftSideDown 20 May 2024 22:14
    the hardest part for me was surprisingly not one of the bosses, but rather the section between octopus and mammoth
    Lugero 31 May 2024 05:47
    It's was not as hard as i thought, even with Launch Octopus giving me a bit of trouble
    Just watch out for the life energies
    MauricioReis 19 Jun 2024 21:53
    all achievements from specific challenges in specific stages allow a password, the only ones that prohibit are achievements such as beating the game without an upgrade, without dying, only buster
    Olafur 19 Jun 2024 21:55
    also keep in mind, this is Sigma Fortress 3 and I don't think you can password all the way there, you'll have to start from Sigma Fortress 1. Not that long but yeah, can't password all the way there
    RioGio27 25 Jun 2024 07:58
    My favourite cheevo from this set. Nice sense of accomplishment walking through that door to D-Rex.
    jonaobroxa 26 Jun 2024 04:56
    This one is much easier than doing perfect on launch octopus. The chameleon is the only one who is actually annoying. The Armadillo you can use the normal buster without charging because it wont active his reflect attack. Mandrill is easy if you dodge the energy balls and his punches, if he is hanging on the roof, don't walk under him, use dash jump before his hitbox to jump across, use dash and normal shot without charging to do double damage on mandrill and mamooth if you want to speed up things. The Octopus is pretty easy since you can get some hits. Just try to dodge some stings when the chameleon hangs up and stay away when he goes down because the tongue attack is annoying. Just be careful along the way to don't get hit too many times by mobs and to don't get any healing itens by accident. If you have trouble with the octopus, use charged buster to destroy his missiles and dash under him. You can also hit him when he gets out of the tornado attack with the charged buster. After trying more than 100 times to do perfect on him, it becomes a lot easier. if he uses the simple missiles, your green charged buster will destroy enough to you don't get a hit, the chasing fishes are more annoying but you can destroy 2 and dash jump the other two. Don't get too close of octopus or he will hit you too much. Mandrill, Mamooth and Armadillo are easy to beat without getting hit. Just be careful to not lose too much HP on Chameleon and Octopus. I made it on my first try. And remember, YOU CAN'T LOSE LIFES ON THE STAGE, IF YOU DIE 1 SINGLE TIME IT WILL NOT TRIGGER THE ACHIEVEMENT.
    Rainbowmon2 29 Oct 2024 23:21
    This isn't so bad once you know how to handle Chameleon Sting. I posted the strategy for him in the damageless achievement's comments: https://retroachievements.org/achievement/2221 Keep in mind, since this achievement is buster only, unlike Cut the Camouflage, you'll need to use pause buffering to reliably dodge his "thorn rain" attack, as I mentioned there. I recommend mapping one of your controller's triggers to Start in Retroarch; you'll be able to pause more easily.

    Aside from that:

    - Whenever Spark Mandrill lands on the ground, wait a moment, then hit him with a charged buster shot (it doesn't matter if it's a level 1, 2, or 3 charge; it just needs to be charged). If he tries to do his "tackle" attack, he'll be knocked out of it - as long as you waited. If you didn't, the shot might hit him *before* he initiates an attack, and if he decides to tackle you then, you're going to get hit.

    - As mentioned above by others, it's best to enter Launch Octopus's arena with a fully charged buster, and then release the button during the boss intro scene. This will immediately and guaranteeably destroy the missiles he sends at you. After that, jump over him as soon as you can, and then always, *ALWAYS* keep your distance from him, mashing the buster as much as you can. When he does his "whirlpool tornado" attack, you can jump and get a free charge shot in, if you memorize the timing.

    - Flame Mammoth might as well be free. Just keep your distance and jump over or dash under him as necessary, and remember that your attacks won't hit him if he's off screen.
    Lucas12345 18 Jan 2025 00:08
    Ah eu finalmente consegui essa conquista foi demoranda mas eu conseguir
    Jedisplays 11 Feb 2025 14:05
    Para facilitar o desafio, o melhor รฉ coletar todos os Heart Tanks para aumentar sua vida mรกxima e a armadura do peito para diminuir o dano pra 50%.

    Segue o video de como consegui completar o desafio de forma fรกcil: https://youtu.be/6PbxV9JY214
    HikanowaGuild 6 Apr 2025 22:21
    https://youtu.be/j-hB1_Gqybg?si=ZFjcxHypSQpzWww1

    Just use the same strategies you used when doing the boss no-hits and this shouldn't be too difficult of a challenge.

    Launch Octopus is easily dealt with after destroying his arms. Once you do that, switch to Buster (do not use his weakness) as lemon spam will deal with the low missile while allowing you to damage him. See my boss no-hit video for Launch Octopus for what it looks like.

    https://youtu.be/KeYALb2i8oE?si=vjRNci212G5Ivihh
    MIR4NHA 17 May 2025 01:38
    acho que ninguรฉm acreditaria se eu dissesse que fiz no damage no Armored Armadillo e passei de primeira, com 2 tracinho de HP, mas foi de primeira

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