Here is the full list of all 33 Xmas Shooting - there are Scramble!! achievements.
Clear the game using Natural formation.
Learn all formations.
Clear the game using high-power Formations and Aggressive style.
Clear Stage 1 without your Chain being interrupted on Normal difficulty or higher.
Clear the game using +0 Formations.
Clear every stage using Maniac style.
Clear every stage using Defensive style.
Clear the game without using Hyper Attacks.
Clear the game using +1 Formations.
Clear every stage using Aggressive style.
Clear every stage.
Clear every stage using Orthodox style.
Clear the game without losing any lives.
Clear Stage 3 without getting hit on Normal difficulty or higher.
Clear the game using the default formations and Orthodox style.
Clear a stage with a Chain of 10,000 or above.
Clear Stage 2 without getting hit on Normal difficulty or higher.
Clear Stage 2 without your Chain being interrupted on Normal difficulty or higher.
Clear Stage 1 without getting hit on Normal difficulty or higher.
Complete every achievement in Xmas Shooting - Scramble!!
Clear the game while getting all possible Hyper Finishes
Clear Stage 3 without your Chain being interrupted on Normal difficulty or higher.
Reach maximum Re-Points.
Clear the game using +2 Formations.
Clear the game using Formations that split up.
Clear the game using low-power Formations and Defensive style.
Clear the game using wide-range Formations.
Clear the game using Formations that require special control methods.
Clear the game using rotating Formations.
Clear the game using high-speed Formations.
Clear the game using low-speed Formations.
Clear the game using direct-attack Formations.
Prove that you are the superior bunny