Lunar Knights

Lunar Knights, released in Japan as *Bokura no Taiyō: Django & Sabata* (often shortened to *Boktai DS*), is an action role-playing game and the fourth installment in Kojima Productions' Boktai series. The game was redesigned to eliminate the need for a real-world solar sensor, which had caused difficulties for players, though it still works with the sensor if any Game Boy Advance Boktai cartridge is inserted into the DS. When certain gameplay features are exclusive to the Japanese version, the original character names are used.

**Gameplay**

The game follows two protagonists: Lucian, a vampire hunter who wields dark melee weapons and can transform into a vampire by building up a Trance (TRC) meter through fusion with his Terrennial, Nero, allowing him to drain life from enemies; and Aaron, an apprentice sharpshooter who uses Solar Guns against undead foes and can temporarily become an avatar of the sun by fusing with his Terrennial, Toasty. Players increase both characters' levels by defeating enemies, and weapons can be upgraded with various parts to unlock new abilities.

The main objective is to destroy a series of boss vampires, each fought in their own dungeon. Players defeat them by exploiting elemental weaknesses or using Trance, then launch the boss into space using the Casket Rocket, Laplace. This triggers a three-part minigame where the player controls Laplace from a third-person perspective with the stylus—moving it steers the rocket, and tapping fires lasers. Afterward, a short video shows the boss purified by intense solar radiation from the Interstellar Satellite Sunflower.

As more bosses are defeated, players gain access to additional Terrennials beyond Nero (Dark) and Toasty (Sol): Ursula (Flame), Tove (Earth), Alexander (Cloud), and Ezra (Frost). Each Terrennial allows manipulation of the game's climate, which can be changed at Sheridan's Mansion. Certain dungeon areas, holding new items and weapons, are only reachable under specific weather conditions, and special high-priced items drop from enemies or objects only in certain climates.

The game uses an internal weather system called paraSOL, which tracks temperature, humidity, and wind speed. Weather is generated by the game itself, not the player's real environment, and includes five types: balmy subtropical, tropical rainforest, humid continental, arid desert, and frigid arctic.