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