WARNING: This solution is meant to be a draft and to be deleted.
Videos 3 and 5 are not uploaded yet.
Note on the direction
I used north, east, west and south to denote directions, north meaning the top of the screen. This direction is always based on the view the video is currently facing.
Video 1Level 1A long level in which you can't err a single square. By pausing when you destroyed a normal dice, and checking the video for the next move, I think you'll likely to beat the voodoo time.
The move on the video to destroy the last normal dice of 4, might seem complicated. After destroyed the normal dice of 3, it moved to right 2 squares to reveal the opposing face of 4, then used three U-move (down-left-left) to match the position. This can be accomplished by a more simple move.
Level 2This level consists of two parts of different style. The first part is a highly random stage with voltodice, where the second part requires very complicated pattern.
To make it possible to use a pattern on the later part, the video tries to solve the first part also with a fixed move. This means that some random moves of voltodice can easily ruin the pattern. So be warned, you might need A LOT OF retries if you are going to do as same as the video.
1:33??: Wants to move to right, but that square is in range of the volt, so waiting. The movement of voltodice is random, so the video happens to have wait here. You'll have to wait now and then, in your play.
1:51??: Voltodice is blocking the way. In some cases, they don't move away at all. In such cases, just retrying the level might be a better way.
2:04??: Using detach to go over an obstacle. This is an important technique in world 4.
2:19??: Now the complicated part. Be careful, since connected dice on a falling stone slab sometimes shows an unexpected behavior. As a rule of thumb, it's safe not to move when the stone slabs are going to fall.
2:34??: Another strange behavior of the connected dice. If you watch the video carefully, you'll notice that the normal dice of 2 is destroyed by a face 2 on connected dice, which is not adjacent to the destroyed one. Maybe it's difficult to use this phenomena intentionally, but knowing these things can happen won't harm.
3:09??: Another wonder

Note that our magnetdice is overlapping the destroyed normal dice of 4.
Level 3This is an unique level, where we are completely isolated from the main level. The key of this level is to opening the right combination of doors. The video does the task with the slightest margin time, but it can do that for sure, so I don't mind :P
Level 4Quite a simple level. The part we have to walk on individually moving stone slabs may seem difficult, but we can pass there simply by holding left-stick / d-pad to the direction we want to move.
Each achievements in a same classification are loosely listed in order from easier to harder.
Muchi Muchi Pork AchievementsRequires no skillEither arcade or arrange:
Requires some understanding of the game or some practiceArcade mode only:
Either arcade or arrange:
(Killed by the first enemy)
(Rammed by the plane)
(Killed by the drill)
Arrange mode only:
Requires a good amount of skill or practiceArcade mode only:
Either arcade or arrange:
Arrange mode only:
PinkSweets AchievementsRequires no skillEither arrange or arcade:
Requires some understanding of the game or some practiceArrange mode only:
(Birds, Hado-gun and multiplier x64)
Arcade mode only:
(Missed the 10k pt. item)
Requires a good amount of skill or practiceArrange mode only:
(Special extend)
Either arrange or arcade:
Arcade mode only:
(Max out the difficulty gauge)