Here is the full list of all 21 KAIKAN achievements.
USE TYPE-E
STAGE3CLEAR
STAGE4CLEAR
USE TYPE-A
USE TYPE-C
USE TYPE-B
STAGE1CLEAR
STAGE2CLEAR
STAGE3 1UPITEM
USE TYPE-D
USE TYPE-F
STAGE5CLEAR
1cc CLEAR
REDCAR Destroy
STAGE5 1UPITEM
Use rank A bomb
Find all hidden medals in Stage1
Find all hidden medals in Stage2
Find all hidden medals in Stage3
Find all hidden medals in Stage4
Find all hidden medals in Stage5