Here is the full list of all 120 CometStriker achievements.
Defeat Launcher Crab In Arcade With Lt. Striker.
Defeat Queen Beetle In Arcade With Lt. Striker.
Defeat The Liyx Central Intelligence System In Arcade With Lt. Striker.
Defeat Junk Champion In Arcade With Lt. Striker.
Defeat Reanimator In Arcade With Lt. Striker.
Defeat The Biostation Defense System In Arcade With Lt. Striker.
Destroy The Beating Heart Of The Biostation In Arcade With Lt. Striker.
Defeat The Omega Parasite In Arcade With Lt. Striker.
Beat Arcade On The Easy Difficulty.
Beat Arcade On The Normal Difficulty.
Beat Arcade On The Hard Difficulty.
Beat Arcade On The Very Hard Difficulty.
Beat Arcade On Easy, Without Using Any Continues.
Beat Arcade On Normal, Without Using Any Continues.
Beat Arcade On Hard, Without Using Any Continues.
Beat Arcade On Very Hard, Without Using Any Continues.
Beat Arcade Easy, With No Deaths.
Beat Arcade Normal, With No Deaths.
Beat Arcade Hard, With No Deaths.
Beat Arcade Very Hard, With No Deaths.
Beat Miniboss Rush On Easy Difficulty With Lt. Striker.
Beat Miniboss Rush On Normal Difficulty With Lt. Striker.
Beat Miniboss Rush On Hard Difficulty With Lt. Striker.
Beat Miniboss Rush On Very Hard Difficulty With Lt. Striker.
Beat Boss Rush On Easy Difficulty With Lt. Striker.
Beat Boss Rush On Normal Difficulty With Lt. Striker.
Beat Boss Rush On Hard Difficulty With Lt. Striker.
Beat Boss Rush On Very Hard Difficulty With Lt. Striker.
Beat Boss Rush+ With Lt. Striker.
Obtain S Rank On Aquario, Easy Difficulty.
Obtain S Rank On Aquario, Normal Difficulty.
Obtain S Rank On Aquario, Hard Difficulty.
Obtain S Rank On Aquario, Very Hard Difficulty.
Obtain S Rank On Floreau, Easy Difficulty.
Obtain S Rank On Floreau, Normal Difficulty.
Obtain S Rank On Floreau, Hard Difficulty.
Obtain S Rank On Floreau, Very Hard Difficulty.
Obtain S Rank On Bassor, Easy Difficulty.
Obtain S Rank On Bassor, Normal Difficulty.
Obtain S Rank On Bassor, Hard Difficulty.
Obtain S Rank On Bassor, Very Hard Difficulty.
Obtain S Rank On Aris, Easy Difficulty.
Obtain S Rank On Aris, Normal Difficulty.
Obtain S Rank On Aris, Hard Difficulty.
Obtain S Rank On Aris, Very Hard Difficulty.
Obtain S Rank On Biostation, Easy Difficulty.
Obtain S Rank On Biostation, Normal Difficulty.
Obtain S Rank On Biostation, Hard Difficulty.
Obtain S Rank On Biostation, Very Hard Difficulty.
Clear Arcade Very Hard With Doom Timer Modifier Enabled.
Clear Arcade Very Hard With No Powerup Modifier Enabled.
Beat Omega Parasite In Arcade With No Powerup Modifier Enabled.
Clear Arcade Very Hard With No Healing Modifier Enabled.
Beat Omega Parasite In Arcade With No Healing Modifier Enabled.
Beat Arcade Hard Under 50 Minutes.
Beat Arcade Very Hard Under 50 Minutes.
Beat Arcade Hard Under 40 Minutes.
Beat Arcade Very Hard Under 40 Minutes.
Obtain A Score Of 20 Million.
Beat Arcade Hard With The Ninja.
Beat Arcade Very Hard With The Ninja.
Beat Omega Parasite In Arcade With The Ninja.
Beat Arcade Hard With Cpt. Bone.
Beat Arcade Very Hard With Cpt. Bone.
Beat Omega Parasite In Arcade With Cpt. Bone.
Beat Arcade Hard With Mini Champ.
Beat Arcade Very Hard With Mini Champ.
Beat Omega Parasite In Arcade With Mini Champ.
Beat Arcade Hard With Parasite.
Beat Arcade Very Hard With Parasite.
Beat Omega Parasite In Arcade With Parasite.
Beat Arcade Hard With No Armor.
Beat Arcade Very Hard With No Armor.
Beat Omega Parasite In Arcade With No Armor.
Beat Miniboss Rush Hard With The Ninja.
Beat Miniboss Rush Very Hard With The Ninja.
Beat Miniboss Rush Hard With Cpt. Bone.
Beat Miniboss Rush Very Hard With Cpt. Bone.
Beat Miniboss Rush Hard With Mini Champ.
Beat Miniboss Rush Very Hard With Mini Champ.
Beat Miniboss Rush Hard With Parasite.
Beat Miniboss Rush Very Hard With Parasite.
Beat Miniboss Rush Hard With No Armor.
Beat Miniboss Rush Very Hard With No Armor.
Beat Boss Rush Hard With The Ninja.
Beat Boss Rush Very Hard With The Ninja.
Beat Boss Rush Hard With Cpt. Bone.
Beat Boss Rush Very Hard With Cpt. Bone.
Beat Boss Rush Hard With Mini Champ.
Beat Boss Rush Very Hard With Mini Champ.
Beat Boss Rush Hard With Parasite.
Beat Boss Rush Very Hard With Parasite.
Beat Boss Rush Hard With No Armor.
Beat Boss Rush Very Hard With No Armor.
Beat Boss Rush+ With The Ninja.
Beat Boss Rush+ With Cpt. Bone.
Beat Boss Rush+ With Mini Champ.
Beat Boss Rush+ With Parasite.
Beat Boss Rush+ With No Armor.
Obtain All Achievements (1-100).
Beat Labyrinth On The Easy Difficulty.
Beat Labyrinth On The Normal Difficulty.
Beat Labyrinth On The Hard Difficulty.
Beat Labyrinth On The Very Hard Difficulty.
Beat Labyrinth On The Very Hard Difficulty With Lt. Striker.
Beat Labyrinth On The Hard Difficulty With The Ninja.
Beat Labyrinth On The Hard Difficulty With Cpt. Bone.
Beat Labyrinth On The Hard Difficulty With Mini Champ.
Beat Labyrinth On The Hard Difficulty With Parasite.
Beat Labyrinth On The Hard Difficulty With No Armor.
Live Long Enough To Die While Fighting Omega Parasite
Complete Arcade Mode In Multiplayer.
Complete 10 Challenges.
Complete 20 Challenges.
Complete 30 Challenges.
Complete 40 Challenges.
Complete 50 Challenges.
Complete All Challenges.
Complete All Challenges With A Rank.
Complete All Challenges With S Rank.