Here is the full list of all 26 Maze achievements.
Complete 6 different Mazes.
Complete 8 different Mazes.
Complete 10 different Mazes.
Complete 11 different Mazes.
Travel to World 2.
Raise the castle gates on Maze 8.
Complete the tutorial level.
Complete 1 Maze. (By reaching the finish and collecting the Maze Coin)
Complete 2 different Mazes.
Complete 4 different Mazes.
Collect a coin.
Fall off a stage or get hit by any obstacle.
Drop a marker flag.
Complete 12 different Mazes.
Complete 13 different Mazes.
Complete 14 different Mazes.
Complete 15 different Mazes.
Complete 16 different Mazes.
Complete 17 different Mazes.
Complete 18 different Mazes.
Complete the Final Maze.
Travel to World 3.
Travel to the Final World.
Collect at least 10 coins in any arcade stage.
Collect at least 15 coins in any arcade stage.
Collect 20 coins in any arcade stage.