Here is the full list of all 21 YumeCore achievements.
Arcade mode clear !
Knock down YODAKA with jump attack only
knock down HATUTA with body blow only
knock down TAMOKO with throw only
GET SUGEEEE MESICINE!
GET YABEEEE MEDICINE!
Knock dawn ICHIA,HUUA and NADEKA without special attack
OMAKE3 clear !
OMAKE2 clear !
OMAKE1 clear !
Game clear
Knock down MIRAI
Escape stage clear !
Knock down HATUTA
Knock down ICHIA
Knock down HUUA
Knock down NADEKA
Knock dawn MAKURO with punch only
Knock dawn TAMOKO
HENSHIN!
Open door