Sonic Adventure 2
15 Achievements
40-48h
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
all bosses except one are fairly easy if you know what to do.
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.