Yu-Gi-Oh! Capsule Monster Coliseum

Darkfire Dragon: Firegrass with a level 5 Petit Dragon
Flame Swordsman: Flame Manipulator with level 4 Masaki the Legendary Swordsman
Flying Penguin: Penguin Soldier with Level 2 Penguin Knight
Gate Guardian: Sanga with Suijin and Level 3 Kazejin
Harpie Lady Sisters: 3 Harpy Ladies at Level 3
Blue Eyes Ultimate Dragon: Fuse 3 level 2 Blue Eyes White Dragons
Cyber Saurus: level 5 Blast Juggler with a level 4 Two-Headed King Rex
Kaminari Attack: Ocubeam with a level 5 Mega Thunderball
Kwagar Hercules: Hercules Beetle with level three Kuwagata Alpha
Metal Dragon: Level 3 Lesser Dragon with Level 3 Steel Ogre Grotto 1
Metal Zoa: Level 2 Zoa with a level 3 steel scorpion
Millennium Golem: Destroyer Golem with level 5 statue from Easter Island at
Rabid Horseman: Battle Ox & Mystic Horseman at level 3
Summoned Lord Exodia: Level 2 right and left arms and legs and Exodia the Forbidden one
Thousand Dragon: Time Wizard level 3 with Baby Dragon level 5
Twin-Headed Thunder Dragon: Thunder dragon at level 4 with a Thunder dragon at level 4.

You must have three Harpie Ladies in order to fuse the Harpie Lady Sisters monster. Because only two Harpie Ladies are available for capture on Mai Valentine's Valley of Howling Winds board (and never in the shop), you must play through the game twice to get all three.

To get the Magician Of Black Chaos, you must have a Dark Magician. The easy way to make him evolve is get him to level 3. Then, stop using him. When you reach area 5 and face Kaiba, you should use the Dark Magician. Have him almost to level 4 like 15 exp. to go. Know when he summons the Blue Eyes White Dragon and find a monster to weaken it so you can use your Dark Magician. When he kills the Blue Eyes, he will be level 4. Make sure nobody can kill him. You must wait until the field turns from light to dark. Then when you are on the dark ship, go to Your Dark
Magician. He should have evolve. Select it to get a Magician Of Black Chaos.

Certain map attributes can cause physical damage to your monsters, such as lakes of lava and crackling electrical arcs. Only monsters with the same attributes as these dangerous spaces can pass through unharmed.

This can only be unlock by doing certain tasks in the game. They can all be bought at Grandpas' Shop in Entrance Hall.

To get more experience for a monster, have that monster destroy your opponent's symbol. They will get anywhere between 50 to 100 experience points.

Win the game to get these cards at random.

Note: You only get 3 cards below each time you beat the game so you may need to beat it multiple times to get
all the cards in the game.

Have 50+ water monsters.

Some monsters are only unlocked in Grandpa's store if you have met specific criteria. For example, the Sinister Serpent is only available for purchase once you have obtained 50 Water-type monsters.

Usually when a monster or capsule is destroyed, you cannot use it during the next round. However, if you start the next round and bring up the menu with "End Turn", "Unit List", etc. and go to "Surrender" and select "Try Again", you will restart the level with all your monsters available for use.