Players control Sohta, a young boy who has just moved to the Fuji no Hana region of Tokyo with his parents. Curious about his new home, he looks around and meets the neighbors, and all evidence points to the area suffering giant monster attacks in the local area, and Sohta intends to get to the bottom of things.
As with the rest of the Guild games, Attack is a very short but sweet experience, with gameplay confined to talking to people, examining the locales, and playing "Monster Cards" after collecting enough Glims.
This game contains examples of:
- The '70s: The game is set in the summer of 1971, during the boom of toku programming.
- Added Alliterative Appeal: All of the Monsters cards have alliterative names, such as Atrocious Avian, Botanical Beast and Primeval Plesiosaur. There's even one called Monstrous Monster. The UFO, Cleaner Man and Frankasaurus cards avert this.
- Brick Joke: One of the first tasks Sohta is given is to delivery some dry cleaning to the bakery, but it's empty when he arrives. You can only complete this errand by finding every Monster Card, which requires reaching the Playable Epilogue.
- Calling Your Attacks: Parodied. Winning at Monster Cards lets you "cast a spell" on the loser, which amounts to a bunch of gibberish phrases arranged however you want before they topple over.
- Emphasize EVERYTHING: The game throws exclamation points into dialogue like candy, often three times in a row.
- Expy: "Cleaner Man" is an homage to Ultraman, and Frankasaurus is the resident Notzilla.
- Gotta Catch 'Em All: The Monster Cards are found around town as "Glims"; collecting a full set of seven Glims completes a card, and each card has three levels of power.
- Item Get!: Glims float into Sohta's hand, and he holds them up proudly.
- Kid Hero: Sohta is 10 years old and the protagonist.
- Maybe Magic, Maybe Mundane: The game has a blast with keeping the goings-on in town vague, whether it's all part of a TV show or if there's actually some genuine aliens and kaiju involved.
- Narrator: In keeping with its toku trappings, the game is presided over by a female Japanese voice — in this case, S-Chan's — who routinely dispenses "words to the wise" and otherwise comments on Sohta's experiences.
- New Transfer Student: Sohta is this, but it doesn't really come up in gameplay since school is closed on account of the Friday kaiju attacks. S-Chan is another one. Ramen ponders the significance of them both showing up so soon after a meteor fell in town.
- Only Known by Their Nickname: A Plus, real name Teruo Tanaue, and he's ashamed of the handle since it stresses his smarts and physical weakness. Ramen's father owns a restaurant.
- Senior Creep: Frank, a bizarre old man who is apparently "studying Earthlings", and he has an unsettling fixation on the differences between men and women.
- Serious Business: Beating someone at Monster Cards makes you their "boss", making them follow your commands. This even has a hierarchy of its own, with citizens having won against one person but lost against another, which becomes important when you need to select the "biggest servant" to cast a spell on in front of Frankasaurus. Nanafushi takes the bullet, so to speak, since he's still new to Monster Cards and thus a "servant" by default.
- Show Within a Show: Sohta mentions that Guardians! Blue Planet Space Defenders! is filmed in the local area.
- Sprite/Polygon Mix: The characters are polygons overlaid on a bitmap background.
