The way to unlock certain robots has been asked, especially MM3 robots, has been asked a surprisingly high amount of times.
So, this guide is a full guide on how to unlock every robot, MM1+ robot masters, and things like Roll, Disco, and Rhythm.
1. The Mega Man 1, Mega Man 2, and Mega Man 4 Robot Masters.
I'm grouping these all together because they are all unlocked the same. For the MM1 Robot Masters, use only neutral type attacks (Buster Shot , Mega Buster, Mega Ball, and so on.) on the Robot Master of the stage. Metal Man, Hard Man, Fire Man, Bright Man, and so on are all unlocked with this method.
NOTE: It is okay to use elemental attacks on the mechas of the stage, but you cannot use elemental attacks on the actual robot master! NOTE 2:: The stage has to be the Chapter 2 Robot Master stages. The fusion stages don't work for unlocking them! This method is the same for Chapter 2 of Dr. Wily, and Dr. Cossack.
2. Roll, Disco, and Rhythm
These three are unlocked the same way essentially, but with a slight variation. For Roll, using Doctor Light, lose any battle. For new players I recommend going to Elec Man's stage with Mega Man only. For Disco, it is the same method, but with Doctor Wily, and you have to lose two different battles. For Rhythm, it is the same method, but with Doctor Cossack, and you have to lose three different battles.
NOTE: The failed missions have to be different missions.
UPDATE: This old method still works, but there is now a new method: To unlock Roll, Disco, or Rhythm now all you have to do is beat the Intro Field a second time as Light, Wily, or Cossack respectively So now you can unlock all robots without having to ever lose once.
There is also an extra method for those that don't want to do either of these methods, and that is the passwords. To unlock the password screen, click the doctor sprite about 10 times in the tab above the home/shop/robots/etc tab and to the right of the battle points tab. Then you get a secret password popup. From there; To unlock Roll from this; put in "Robot Get: Let's Rock n' Roll!" To unlock Disco from this; put in "Robot Get: Panic at the Disco!" To unlock Rhythm from this; put in "Robot Get: Rhythm and Blues!"
3. Mega Man, Bass, and Proto Man
These three are unlocked automatically with you unlocking each doctor. Start the game and you get Mega Man. Unlock Doctor Wily and you get Bass, and unlock Doctor Cossack and you get Proto Man.
4. Mega Man 3 bots, and MM5+
All you have to do is just scan the robot you want (Snake Man, Magic Man, Jewel Man, etc) and you should be able to buy them for 48k zenny in Kalkina's shop. That's it. No having to buster only them in their fields or anything. This method is incredibly easier, and I personally recommend it, but if you don't have much zenny, either sell some items or scan your stars. Besides the large amount of zenny you need, there is not much challenge or confusion to this method at all.
List of robots you can unlock through buying them (updated 1/9/18): -All Mega Man 3 Robot Masters -Wave Man -Star Man -Gravity Man -Gyro Man -Splash Woman -Magic Man -Slash Man -Jewel Man -Blizzard Man -Freeze Man -Frost Man -Block ManHope this helps!
FINAL NOTE: Any robot that isn't mentioned here is NOT unlockable as of right now. When new robots become unlockable I will try to quickly get out an update for how to unlock them as quickly as possible. As MegaBossMan noted below, some users have figured out how to manipulate their user data to get robots that aren't unlockable yet. I will not add a guide on how to do that yourself, as I don't know how to do that, and I don't want more people breaking the game.[/i]
edit: thanks for the sticky, mod squad *finger guns* edit 2: an explanation of how to unlock the new bots in the most recent update as now been added edit 3: various fixes and cleaning up to this thread; field method for unlock mm3 bots has been removed
How to unlock every (unlockable) robot Posted by ThatOneEnderMan on June 20th, 2018 at 10:10pm Viewed 777 Times
@Ninja : Good to hear that this helped. I really should have added the screenshots sooner, but none the less. (And I can successfully say this guide is complete as well. There is one or two things I may add in the future, such as how to unlock Alt Costumes, but in this current state this feels to me very finished.)
Posted on July 12th, 2018 at 4:43pmEdited on 2018/07/12 at 6:54pm
Posted 2018/07/12 at 4:43pmEdited 2018/07/12 at 6:54pm
Sorry that I'm kinda late for this, but while trying to get all of the stars, I found Needle Man, Shadow Man and Snake Man in both Cut Man, Skull Man and Wood Man's stage respectively. I don't have the ability to buy fields from Kalinka yet, but I did scan them both. When I can buy fields from her, will I get access to their stages immediately or will I have to find them again in Fusion battles?
EDIT: Nevermind. I finally unlocked the field feature and apparently, it does work, as Snake Man was the only bot from MM3 that I unlocked and scanned that wasn't also found in a fusion battle and scanned.
Posted on July 20th, 2018 at 2:44amEdited on 2018/07/20 at 2:48am
Posted 2018/07/20 at 2:44amEdited 2018/07/20 at 2:48am
Quick update to this guide: Note 2 for the MM3 section has been added all while I am reminded once more why no one is able to unlock the MM3 robots without asking. Who thought making it harder to unlock them would be a good idea!?
also hey mods if you are reading this can you sticky this thread? yeah that would be nice thanks
Posted on November 2nd, 2018 at 3:21pmEdited on 2018/11/05 at 7:09pm
Posted 2018/11/02 at 3:21pmEdited 2018/11/05 at 7:09pm
Um the MM5 Robot Masters and so on seem to be here now. And i've seen someone with Punk, so I think the Mega Man Killers are now too. (From what I know.) Just wanted to tell you.
I figured out we can get SOME of them. Turns out some don't have fields yet. Or maybe we can get all of them, just some without fields. But it's a possibility people are starting to hack their way into getting those robots.
Posted on November 5th, 2018 at 7:04pmEdited on 2018/11/05 at 7:09pm
Posted 2018/11/05 at 7:04pmEdited 2018/11/05 at 7:09pm
@Flame Person : A subset of users have indeed manipulated their profiles in order to access gimped versions of Robot Masters unable to be obtained in regular play. While it does not affect anyone else's play sessions, it is unfortunate that these robot breaches are able to occur. I'd like to apologize for the community disturbance this causes, and with any luck we can patch these holes out in due time >_>