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