Here is the full list of all 15 TWINKLE STAR SPRITES achievements.
Throw 50 "bombs" (character or story mode)
Defeat Memory (Story mode)
Complete the Story mode (any difficulty)
Complete the game using less than 10 credits (solo)
Defeat Mevious (Story mode)
Perform a 15 Hits Combo (solo)
Complete a level with full life (solo)
Perform a MAX Hits Combo (solo)
Play with a friend (local or online)
Play with all characters (secrets too) (solo)
Reach a score of 1 000 000 (solo)
Win 5 straight games in multiplayer mode (locale or online)
Perform 30 "Boss Attack" (solo, charged attack only)
Complete the game with all characters (character mode)
Launch 100 charged attacks (solo)