Ezee03

as i wanted a perfect ratio, is it possible?

Hello, I'm new to the Fire Emblem series and I am enjoying it a lot, I have a few questions that hopefully can be answered, I wanted to 100% fire emblem gba but when looking at the soundtrack it wants me to get a game over and let a character die, is it possible to unlock these without damaging my record of 'Wins Loses and Battles' thankyou in advance!