Here is the full list of all 33 SuperTotalCarnage! achievements.
Reach level max with Er Metano
Win a game with Peppefet
Reach level max with the Spree Killer
Reach level max with the Bajocco
Win a game with RicGian
Win a game with Ciro
Win a game with Dommatteo
Win a game with Pio
Win a game with Bombolo
Win a game with Cesarone
Win a game with Duca Pelli
Reach level max with the Bazzuca
Reach level max with the Moooosega
Reach level max with the Bombe calde
Reach level max with the Tre Scrocchi
Reach level max with the Mitra
Reach level max with the Molotov
Reach level max with the Canne Mozze
Reach level max with the Palla Chiodata
Reach level max with the Se Ciao
Reach level max with the Disco Inferno
Reach level max with the Bombe calde a grappolo
Reach level max with the SPATA
Reach level max with the Sbarajone
Win a game with Zora
Reach level max with the Topi del Cielo
Reach level max with the Pantegane del Cielo
Win a game with Miss Tress
Reach level max with Bonerang
Reach level max with Bonestorm
Win a game with Caramba
Reach level max with Mai A Letto
Reach level max with Mai Alone