Your first Jiggy of the game will be located on top of some rocks to the left of where you enter Gruntilda's lair. That will open up Mumbo's Mountain which contains another ten Jiggies. Collect any of them to get your second Jiggy and the achievement.

Here is a quick rundown all all the Jiggies in the game and Here is a more thorough walkthrough if you need help at any point.

Inside the first world you will need to collect five silver skulls to pay for your transformation. Once you have all five, head into the skull hut to the right of the level's entrance and press X on the skull platform to transform for the first time. Here are the five skull locations:

1. To the right of the entrance, behind the tower where the purple jinjo is standing.
2. Next to where Bottles teaches you the egg spit, go to the left and jump up onto the ledges.
3. Hidden behind a slab near the stone hedge rock formation.
4. Inside the termite mountain on the second ledge.
5. Underneath the ramp leading into Mumbo Jumbo’s skull.

You will need to learn all the moves to beat the game, but here are the locations of Bottles' molehills thoughout the first seven levels of the game.

Note: You can skip the tutorials inside Spiral Mountain, the achievement is only for the moves learned in the game's levels inside Gruntilda's Lair.

First thing you want to do for this achievement is talk to Brentilda (the pink fairy hidden around Gruntilda's Lair) three times every time you see her. Write down or remember well the things she says about Gruntilda. Here are her locations.

Outside of Click Clock Wood will be a note door that will take you to the second-to-last section of the game, a giant quiz game. If you get an answer wrong during the puzzle, you lose one health. If you answer something wrong on a skull tile, you get thrown into the lava and die. Here is a very thorough walkthrough of the puzzle game, including all the answers (except the game-specific Gruntilda answers which you should have remembered or written down as explained previously).

Here is a picture of the game board.

Use this path to get through the quickest/easiest.

I would suggest though to get the first Joker card on the left and use it to skip one of the Death squares at the end to make things a bit easier.

After the above achievement the game will seem to end. Reload your save and return to the quiz area, but now you can freely run across the board and up the stairs where Gruntilda ran to.

There are five phases to this fight:

1. Dodge her dive attacks and jump attack when she stops.
2. Dodge her fireballs and spit eggs at her.
3. Use the flight pad and dive-bomb into her.
4. Spit three eggs into each Jinjo statue.
5. Spit three eggs into each hole on the large Jinjo statue.

Warning: DO NOT do this achievement until you have collected all 900 notes for the  "Music Maestro" achievement. Doing this will remove all the notes from all the stages, making it impossible to get your remaining notes.

After beating the game, return to Banjo's house in Spiral Mountain and stand at the edge of the carpet. Press Y and look at the picture of Bottles. If done right the game will start. If nothing happens you're not in the right spot, so move and try again.

There are seven puzzles to complete for the achievement. The puzzles will always break apart in the same pattern so if you are having trouble, try to do the same thing over and over until you get fast enough.

You must find all 3 of Gruntilda's spellbooks for this achievement. Here are there locations and how to get to them:

Book 1. The first book is after BubbleGloop Swamp, level 4. So once you learn how to wear the boots on this level from Bottles just leave and cross the Swamp and turn right into the tube (3 tubes, forward leaves area, left goes to Brentilda and right goes to a pair of boots.) Get the boots on and run through the swamp and behind the enternce to BubbleGloop swamp there is a passage, go through it and once on the other side, go up the hill to the left and break the thing blocking the passage, now return to BubbleGloop Swamp and turn into an alligator. Leave the level as the alligator and go through the tube again and go to the spot where you destroyed the block. Go through there and there is Spellbook 1.

Book 2. You will need to be a pumpkin in order to get to this spellbook. You will become a spellbook on the Mad Monster Mansion level, which is level 7. Once Mumbo turns you into a pumpkin, leave the level and bounce out of the area. When you are in the volcano area there will be two paths, take the skinny one. Once you get across it there will be a small hole, go through that and there it is, spellbook number 2.

Book 3. After you have entered the second code come back to the graveyard. Go to the left of the enterence of Mad Monster Mansion and break the fence. Now go into the level and turn into a pumpkin then leave. Once you leave take a sharp right and go through the fence that you knocked down and go into the hole in the door. Go to Mumbo and turn back into Banjo. (Mumbo is in that shack) Beak Bust the sarcophagus in the center of the room. Now jump on the first water switch.

Later on when you leave Rusty Bucket Bay, enter the alcove holding the grate which you knocked out earlier. This is the room where you first hit the water switch. (Not the one in the graveyard) It is the one with the shrapnel in it. Go to the opposite way to the third water switch. (Go through the pipe) Slam down on this and jump into the water and enter the next room. You have 30 seconds so quickly swim up to the top and enter through the topmost alcove. This is the room with the Rusty Bucket Bay enterance. Inside here, you will find the third and final spellbook.

There are 100 notes in each of the game's levels, none in Spiral Mountain and none in Gruntilda's Lair. Once you have collected a note the game saves, so you can die or leave the level at any time without fear of having to collect anything over again.

Here are the locations for all of them.