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