Here is the full list of all 12 Nin²-Jump achievements worth 200 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox 360.
Get World 1 cleared in Adventure Mode.
Get World 2 cleared in Adventure Mode.
Get World 3 cleared in Adventure Mode.
Get World 4 cleared in Adventure Mode.
Get World 5 cleared in Adventure Mode.
Clear World 1 of Adventure Mode within 5'10"000.
Clear World 2 of Adventure Mode within 4'05"000.
Clear World 3 of Adventure Mode within 3'45"000.
Clear World 4 of Adventure Mode within 3'40"000.
Clear World 5 of Adventure Mode within 5'40"000.
Collect all hidden CAVE-kun in Adventure Mode.
Survive over 3 minutes in Score Attack Mode.