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