Sonic Adventure 2

Sonic Adventure 2

15 Achievements

40-48h

PS3
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Boss Attack

Boss Attack

Clear all 3 modes in Boss Attack Mode.

2.5%

How to unlock the Boss Attack achievement in Sonic Adventure 2 - Definitive Guide

Like the other solutions say, you have to beat all 3 stories to unlock boss battle mode, which you select from the main menu under "Boss." It is fairly easy, hero side you fight all the bosses in the hero mode, dark all the bosses in dark mode, and all, all bosses from both sides including Biolizard and Final Hazard. The amount of lives you have is the same as the amount you have in the story mode, so to make this easier, keep replaying Tail's "Route 101" level. By collecting coins, you can rack a very large number of lives quickly, and those lives will translate over to boss mode. You shouldn't need more than 20 but I'd get 30 or maybe 40 if you're feeling unlucky.
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10 Oct 2012 09:56

6 Comments
I did it with 15 ... losing 2 times to tails V2 and about 15 to biolizard , gained 3 lives through the process (egg golem , and two against Sonic)
all bosses except one are fairly easy if you know what to do.
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By Sprites7 on 10 Oct 2012 20:06
The bosses are all fairly easy save for Tails/Eggman and Biolizard, but I like to bring extra because the unexpected can happen.
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By Grn Lantern1 on 11 Oct 2012 00:38
If you start Boss Mode and forgot to farm lives, you can get as many as you want on the Sonic/Shadow boss battles by Light Dashing the chains of rings. You can get about 20 lives in 15 minutes.
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By H3L xSHARINGANx on 21 Jan 2013 04:37
*rings
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By Groudon199 on 08 Nov 2014 17:03
You only need extra lives if you are bad at this game.
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By R0XX0 on 13 Dec 2020 03:07
i got extra lives by playing knuckles pumpkin hill. Glide forward into the baloon to first platform directly ahead of you then dig into the circle where you found the powerup. You will get a life. Quit level and you will keep the extra life. Repeat for more lives. If you need more lives during the boss mode during last sonic or shadow fights ignore them and just keep collecting rings for extra lives.
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By DemonDuffeh on 14 Oct 2012 23:36
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For this trophy you must clear all 3 modes of Boss Attack Mode. Each mode unlocks as you complete its respective storyline. Here is a list of all the boss battles for each respective boss mode:

Hero:

 

F-6t BIG FOOT
Dr. Eggman
Shadow
King Boom Boo
Egg Golem
Rouge
Dr. Eggman
Shadow

Dark:

 

B-3x HOT SHOT
Tails
R-1/A FLYING DOG
Sonic
Egg Golem
Knuckles
Tails
Sonic

All:
During this Boss Attack mode you will have to play through the Hero and Dark boss fights as well as the boss fights from the LAST story mode which are as follow:

 

The Biolizard
The FinalHazard

The amount of lives you have is equivalent to the lives you have current from stage select, have a good amount for boss battles you have difficulty with which shouldn't be any as these boss battles are fairly straightforward and easy.

After completing all 3 of these modes your trophy should unlock. For a written overview of the boss strategies for this game, please refer to the IGN Sonic Adventure 2 Boss Strategies. If that's not enough please refer to this video for a visual on even faster ways to defeat each boss.

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