In the game Resogun, players navigate through five unique cylindrical levels, each offering distinct challenges and visual styles: Acis, Ceres, Decima, Febris, and Mefitis. The gameplay revolves around a classic arcade twin-stick shooter format, where players must combat waves of enemies while rescuing trapped humans.

Each level is structured into three phases, culminating in an intense boss battle:

1. First Phase: Players encounter various enemy waves, requiring strategic shooting and dodging tactics. During this phase, players also focus on rescuing humans which are held captive in chambers scattered throughout the environment.

2. Second Phase: The action intensifies as players face stronger and more diverse enemy types. Continued rescuing efforts are crucial, as saving humans grants significant points and assists in unlocking power-ups.

3. Third Phase: This phase leads directly to a climactic boss confrontation. Each level’s boss presents unique attack patterns and challenges, demanding quick reflexes and tactical prowess to defeat.

Successfully vanquishing the boss not only clears the current level but also paves the way for progression to the subsequent environment, each of which offers a fresh aesthetic and gameplay dynamic. The levels are characterized by their voxel-based design, which enhances visual immersion and adds to the overall arcade experience.

In summary, the five Resogun environments are:

– Acis
– Ceres
– Decima
– Febris
– Mefitis

Each stage presents players with a fresh challenge as they battle foes, rescue innocents, and ultimately confront powerful bosses, all while enjoying the fast-paced, action-packed gameplay that Resogun is known for. Progressing through all five levels in Arcade mode forms the core experience of this thrilling title.