Here is the full list of all 17 Beater Spirit achievements.
Get last gold hairstyle.
Get last gold weapon.
Get last gold costume.
Reach 20 level and open gold tokens.
Play 60 matches.
Kill 50 slugs.
Get last silver costume.
Get last silver hairstyle.
Kill 50 skeletons.
Get last silver weapon.
Dead 20 times.
Play 30 matches.
Get last bronze hairstyle.
Get last bronze costume.
Kill 50 bats.
Play 10 matches.
Get last bronze weapon.