Heroic Albino: Since it's not actually skin, but probably some kind of polymer.
Heroic Mime: Even when you're playing as Curly, he only talks out loud once.
Hyperspace Arsenal: He can carry vast amounts of weaponry, various keys he doesn't even need, various devices that are built onto his weapons, jars, food, and badges, and at the end of the day, still have enough room to fit panties and lipstick in too.
Red and Black, Keep Back: With that red hat and black shirt, you start of with everyone thinking you are a battle robot and "Mimiga-butcher". The fact that you are a soldier doesn't help. Subverted later on when you learn that you were sent to destroy the Demon Crown rather than the Mimigas.
More Dakka: Her Machine Gun, which she'll offer to you after beating her; she takes the Polar Star in return.
Nice Girl: She and Quote have a little misunderstanding when they first meet but even then it was only because she was trying to protect some Mimiga kids she was taking care of. She also sacrifices herself to keep you alive for no reason other than that she wanted to.
Not Too Dead to Save the Day: As mentioned above, the third level power for the sword is not as much throwing the sword as it is sicking King's soul at the enemy.
Red Eyes, Take Warning: Subverted in that he's a good guy regardless of this trope applying for him. This is because Pixel confirmed that King indeed ate red flowers, but cooked them, which gave him strength but didn't turn him.
Macross Missile Massacre: During the final encounter with him. Quite appropriately, you get an upgrade to rocket launcher after the battle.
Psychopathic Man Child: We don't actually know how old he is, but personality-wise the disconnect between the almost child-like way he carries himself and the monstrous things he does during the story qualifies him for this trope.
A frenzied Mimiga. He kidnaps Sue in the Egg Corridor. It is implied he was the caretaker of the Dragon Eggs, as the 3DS version reveals the ID Card is his.
Degraded Boss: Reappears on The Balcony as a slightly stronger regular enemy, jumping higher and firing off more projectiles. Whether it's actually him, or just another frenzied Mimiga that looks and acts like him is up for debate.
A robotic monster that lives in the Sand Zone. Prior to its appearance, Misery was going to fight the hero. Upon noticing him about to rise from the sand, she leaves dealing with the hero to him.
A large, multi-segmented monster that lives in the center of the island. Its power keeps the island floating in the air. If it is destroyed, the island will fall. After defeating it the first time, it's about to be destroyed, but Misery and the Doctor arrive and save it. It becomes the Undead Core and is a possible Final Boss.
Boss Bonanza: In the second fight, it comes after Misery and the Doctor.
A mischievous mushroom that lives in Mimiga Village's graveyard. He gives the hero the Mushroom Badge if he saves Curly and tells him about her amnesia. The badge itself does nothing; the actual cure is Ma Pignon himself. However, he won't go down without a fight.
Bonus Boss: Required in order to get the best ending.
Kaizo Trap: Heavy Press falls through the floor after being killed. The punishment for standing underneath him when he does so is instant death. That is, unless you abuse Mercy Invincibility via one of his minions.
Stealth Pun: A necessary bomb ingredient, charcoal, its found in his house.
A resident of Grasstown. The fireplace in her house contains a passageway that leads to the second half of Grasstown.
Event Flag: To pass through the fireplace, you need a jellyfish juice. Said jellyfish juice comes from a giant jellyfish that appears only when you try to pass through the fireplace.
Optional Sexual Encounter: Sleep in her bed after she mentions jellyfish juice, and the hero will wake up with her sleeping next to him. He obtains her lipstick, which is useless outside of getting 100% Completion. This also works in In Curly Story. She gets her rouge.
A robot that oversees the power room in Grasstown. He helps break Kazuma out of a house.
MacGyvering: He can make a bomb out of a charcoal, a gum and jellyfish juice.
Robo Speak: In the fan-translation he SPEAKS IN ALL-CAPS ALL THE TIME.