: You travel across Aranearum Island in a yellow train that serves as your mobile base. By collecting "scraps" from the environment or completing missions, you can upgrade your train's health, speed, and damage.

: The main objective is to collect three glowing monster eggs hidden in mines across the island. These eggs are used to summon Charles for a final, lethal duel.

: Your train is equipped with a rear-mounted gun to fend off Charles. Throughout the game, you can unlock more powerful weapons like a flamethrower, a rocket launcher, and a heavy rifle nicknamed "Bob".