It’s unlocked automatically after battle tutorial.
Disarm 100 enemies with knives. The easiest way is to punch and then quickly go into defense mode (X), then pressing A button when they attack you.
Kill 100 enemies with a sword. As with the knives, you have to disarm first the enemies and then kill enemies with the stolen sword. They are cumulative, you don’t have to kill 100 enemies with only 1 sword (that would be impossible). To disarm the swordsmen punch them, this will push them backwards, so before entering defense mode and disarming them, you have to close the distance.
Shoot 100 bottles. This is quite tricky. First you have to disarm an enemy with a gun. You can do it by approaching them in defense stance (keep pressing X), then press A and back. This way you’ll get his gun ready to shoot. When an enemy with a bottle appears, wait for him to throw it at you, then shoot. You’ll have to do it 100 times, but can be done easily in Rumble Mode selecting only gun and bottle enemies.
Perform all grappling techniques. When you approach an enemy, you can grab them and do grappling techniques. To do them, when you grab an enemy, press the following for 5 different grappling techniques:
Intercept 100 attacks. This will come naturally, just stay in defense mode and press A when an enemy attacks.
See the end. You just have to keep on playing, this will unlock automatically.
Get your own office. During one of the first cutscene, Azuma will ask you to go and take care of something at the Construction site, which will be unlocked on the map. You HAVE to go on the same day the cutscene appears, during afternoon or evening. You will witness a scene there, and then you will have an office for your “hard work”.
Do it like Kitano. When you buy a gun at the Pawn shop, you can point it at your head. Press RB+X to draw the weapon, then press RB+UP to point it at your head and fire. Kitano style.
IMPORTANT NOTE: Harada, Oyabun and King of beasts achievements can be obtained all in one run. Follow instructions down below, starting with Oyabun achievement.
Kill the Oyabun. To trigger the event, you have to actively pursue Harada territories. When you get the Baseball one, Harada will appear just outside your house or hotel. He will challenge you to a fight and you’ll have to beat him. DO NOT LEAVE THE AREA OR EXIT THE GAME. If you do, you’ll lose your chance. Fight Harada and defeat him. Next, you’ll have to interact with him at the Baseball batting centre 2 times. There will be two cutscenes. At this point Harada will randomly appear and ask you to jump on the bike. Do it and follow through his plan, killing the Oyabun in the sento will give you the achievement. Follow up in the next achievement.
Kill Harada. Now that you killed the Oyabun, an all out battle ensues all over the map. You’ll have to fight in different areas for two days. Then you’ll go to the Oyabun headquarters, where you’ll fight Harada with his goons. After defeating them, DO NOT ENTER THE VILLA. Harada will still move, approach him and press the X button. He will talk to you and you’ll get the achievement.
King of beasts
Become the oyabun. After you dealt with Oyabun and Harada, you may now enter the villa and become the Oyabun, you’ll get the achievement soon after.
Kill Azuma. There is a specific route to kill Azuma. You have to get an office, go with Kato to the countryside and actively take out Tanaka’s turfs. At some point Azuma will ask you to take on a quest related to a Hostess. At the Hostess club that got unlocked you have to choose the black haired girl. A cutscene will trigger. After that, you have to visit the Hostess club once more, speak with the man at the counter but don’t choose any of the girls. The next day go to Main Street on the left side, where the restaurant is located. You will find the black haired hostess. Speak with her and press the RB trigger to kiss her. A cutscene will trigger. At this point you have to keep on taking Tanaka’s turfs and there will be another cutscene, telling you that Tanaka has kidnapped the girl. Go to the new place on the map. Tanaka’s men will ask you to kill Azuma if you want to see the girl alive. Now go and kill Azuma.
Kill Tanaka. Get your office, go to the countryside with Kato and while doing that, actively attack Tanaka territories (the green ones). When you take all of them, a cutscene will occur where Kato, Seiji and Azuma go to Oyabun’s villa to meet with Tanaka. At this point, you’ll have a choice to make. DO NOT SLAP KATO when required. This will activate a new cutscene with Azuma later on. You’ll be in the Mahjong parlor and Tanaka will ask you to kill Kato shooting at him. While you have the gun pointed at Kato DO NOT PRESS RB to shoot. Instead, keep pressing BACK and then SHOOT. There will be no visual cue, so be sure to keep pressing BACK to shoot Tanaka instead. This will give you the achievement.
Kill Kato. Just as in Kill Tanaka, when prompted to kill Kato just shoot at him. This will give you the achievement.
Kill Ando. To access this route, you have to speak with Azuma a total of 9 times. Everytime you sit down and speak to him, a white star will appear above his head. Do it three times and you’ll see a cutscene. Do it three more times and you’ll see a new cutscene. Lastly, do it three more times and you’ll be locked into a route where you’ll have to kill Ando in his turf.
The Achievement Guide is now complete.