Nettou! Gekitou! Quiztou!!/Gameplay

Controls

 * Answer Buttons: Use the four answer buttons to answer 1, 2, 3 or 4 to each question; if your answer is correct, a yellow "O" will appear next to your chosen number as your remaining time is added to your score, but if it's incorrect a red "X" will appear next to it as your character loses a "life-jewel".
 * 1, 2, 3 or 4 Player Buttons: Push these buttons to begin the game as player 1, 2, 3 or 4.

Kufū, Hana No Sei, Koseibutsugakusha and Hōfu (工夫, 花の精, 古生物学者 & 農夫)
This labourer, flower spirit, paleontologist and peasant are the protagonists of this game; they each start out in the four corners of the island and conquer a square once they've cleared its stage. They must then decide which square they want to move onto next by pressing one of the Answer Buttons - and some of the squares have Japanese text on them indicating what type of stage they are: E no mondai (絵の問題) indicates a stage with picture questions, 2/3-Taku (2/3択) means a stage with questions which only have two (or three) possible answers, Janru serekuto (ジャンルセレクト) means a stage where you may select one of four different genres for questions, "TIME X2" means a stage where your remaining time bonus for a correct answer will be doubled, and Noruma -1 (ノルマ -1) means a stage where the required number of correct answers will be reduced by one. If one character should move onto another one's conquered square, it invokes a special type of stage in which the conquered square's owner will set the trespasser eight questions (with a keyword that is common for all eight answers); if the trespasser answers all eight questions correctly, they shall take possession of that square, but if they should answer even one of those eight questions incorrectly, the owner shall send the trespasser back to their last conquered square.

Monkeys (猿)
From top to bottom: Gorilla (ゴリラ), Hihi (ヒヒ), and Saru (サル); like many other opponents, the Hihi and Saru are merely palette-swaps of the Gorillas.

Anteaters (蟻食い)
From top to bottom: Arikui (アリクイ), Baku (バク), and Koarikui (コアリクイ); the Koarikui are also supposed to represent a smaller version of the Arikui.

Elephants (象)
From top to bottom: Africa Zou (アフリカゾウ), Indo Zou (インドゾウ), and Naumann Zou (ナウマンゾウ); due to their sizing, all you can see is their eyes.

Horses (馬)
From top to bottom: Uma (ウマ), Roba (ロバ), and Shimauma (シマウマ); the Roba and Shimauma (zebras) also appear to be smoking upon cigarettes.

Bears (熊)
From top to bottom: Kuma (クマ), Panda (パンダ), and Shirokuma (シロクマ); all three also appear to look very bored, but they can still jump out at you.

Octopuses (蛸)
From top to bottom: Kurage (クラゲ), Tako (タコ), and Ika (イカ); due to that fact that they are submerged under water, all you can see is their tentacles.

Birds (鳥)
From top to bottom: Flamingo (フラミンゴ), Dachou (ダチョウ), and Tsuru (ツル); the Flamingoes also appear to be more red (than pink) on their bodies.

Seals (海驢)
From top to bottom: Azarashi (アザラシ), Ashika (アシカ), and Ottosei (オットセイ); all three kinds also seem to be unusually coloured for what they are.

Cats (猫)
From top to bottom: Yamaneko (ヤマネコ), Hyou (ヒョウ), and Lion (Mesu) (ライオン（雌）); mesu means "female", so the Lions are actually lionesses.

Bees (蜂)
From top to bottom: Hachi (ハチ) and Abu (アブ); there are only two different types of these creatures (as opposed to three) and they attack in swarms.

Pigs (豚)
From top to bottom: Buta (ブタ), Inoshishi (イノシシ) and Tsuchibuta (ツチブタ); when a question is answered correctly, they will be blown into the mud.

Snakes (蛇)
From top to bottom: Hebi (ヘビ), Umihebi (ウミヘビ), and Unagi (ウナギ); now the animal opponents have been covered, it is time to meet the Chisogin.

Chisogin (地底人)
If less than four players are present, the remaining player protagonists will be substituted with these CPU-controlled underground people; from left to right: Bob (ボブ, fills in for Kufū), Ringu (リング, fills in for Hana No Sei), Makoto (まこと, fills in for Koseibutsugakusha) and Pochi (ポチ, fills in for Hōfu). The appearances of Bob and Makoto are also identical, and if a player character moves onto one of their conquered squares, it shall have exactly the same effect as moving onto another player's conquered square (that is, it will invoke a special type of quiz in which the Chisogin will set the player eight questions with a keyword that is common to all eight answers - and if the player answers them all correctly they shall take possession of that square, but if they should answer even one of the eight questions incorrectly, the Chisogin will send the player back to their last conquered square).

Chitei Daimaō (地底大魔王)
Once all thirty-six squares of the island have been conquered (and all three of the other players, or Chisogin, have been defeated), this enormous eight-armed (but eyeless) underground demon shall emerge from under the island, for the first time since 1693; he will then set you the same type of quiz that the other players (or Chisogin) set you (eight questions with a keyword that is common for all eight answers). As you answer the questions correctly, the colouring of his body (but due to his size, all you shall see of him after his initial appearance is his mouth) will change, from green to gray to purple - and once you have answered the eighth question correctly he will explode. You can now sit back and enjoy your character's ending (much like Ward, Emilio, Charles and Karl from Exvania, which was released in the previous year and also ran upon Namco NA-1 hardware, each of them has their own ending).