日本語タイトル：英語セミナー公式DS教材高校英単語エイタン侍DS Eikoh Seminar Koushiki DS Kyouzai - Koukou Eitango - Eitan Zamurai DS (Japan) is a Nintendo DS game developed by Eikoh, a Japanese educational company, and published by Marvelous Entertainment. It is designed to help high school students learn English vocabulary. The game is set in a medieval town and the player takes on the role of a samurai who must battle monsters and complete different tasks to protect the town from evil. The player is given a list of English words and must use them to complete various tasks, such as fighting monsters, solving puzzles, and deciphering clues. The game also includes minigames, such as word puzzles, where the player must unscramble words, and a typing game, where the player must type in the correct word in order to proceed. As the player progresses, they will earn points, which can be used to upgrade the samurai's weapons and armor. The game features several levels of difficulty, so players of all ages and skill levels can enjoy the game. It also includes a dictionary of English words, so players can look up words they are unfamiliar with. In addition, the game tracks the player's progress and records their score, so they can track their progress and work to improve their vocabulary skills.