Main Menu Navigation
From the main menu, you can choose where you want to go: Story, Multiplayer, Options, Credits. Switch options by pressing the Control Pad Left or Right and confirm by pressing the A Button. When you're in a sub-menu, press the B Button to go back.
The options allow you to change in-game settings, like the sound effects and music volumes. A jar containing M&M's® represent the volume: fill it to have the maximum volume or empty it if you want to lower the volume. The credits section is where you can read the names of the developers.
The Map
After choosing to start a new game and having selected one of the heroes you want to use, you can control the game progress from the main map. Here you can choose the location you want to play and unlock new ones as you proceed in the adventure. Three locations are available at the beginning: "Egg Island", "Deep Blue", and "Green Hill".
After selecting the location, choose your play area from a sub-map. The “spots” on the map represent the areas with the corresponding number of levels you're going to play in. The orange spots are the normal levels. After completing all of them, a blue spot will respectively appear indicating that you've accomplished all and allowing you to access the Boss Levels!
For added thrills, some locations hide secret levels where one can earn extra points and collect special bonuses. Try finding the hidden keys to unlock extra levels. When unlocked, a pink spot will appear on the map.
Egg Island
The Game
Breaking the crystals is the main objective and the only way to save the M&M's® characters trapped in them. To do that, you can control one of the M&M's® by making it bounce throughout the screen, move it left or right, and hit the crystals of it's same color. Some special blocks allow you to change the color. Once all the crystals are freed, a door to the next level will open. But be careful! It's not as easy as it sounds: some skull blocks will terminate you when and if hit. So, try avoiding them!
A simple interface shows useful information about the game such as lives, points, time left. Points are very important: you can earn extra lives!
Also, you must be very quick. When the time is over, extra trouble will come your way. A bouncing skull will jump throughout the screen. It will try to catch you thereby taking out "lives" and deterring you to finish the game level.
Multiplayer
From that menu, you can know the number of matches won by each player and start a new match by pressing the A Button (only the master player can choose to start) or quit the multiplayer and go back to the main menu by pressing the B Button (both players).
The player that wins 2 levels wins the match. In order to win a level, you must collect more crystals than your opponent! The interface shows the number of crystals collected and levels won. Your opponent can be recognized by a “P1” or “P2”.