Phantasy Star: Nahru Cave

Thanks to Joe Zbiciak for mapping the first two levels and checking all the chests.

Key

        /  Door         ^  Stair Up
        |  Hidden Path  v  Stair Down
        %  Person       E  Exit
        *  Chest

Level 1

        ################
        ######.....###*# [Red Dragon]
        ######.###.###.#
        #*...#.###.###.# 2000 M
        ####.#/###.###.#
        ####.#.###.###.#
        ####...###.###.#
        ####.#####.....#
        ###..###.###.###
        ###.####.###.###
        ###^####.###/###
        ########.###.###
        ########.###.###
        ########.###.###
        ########.....###
        ################

Level 2

        ################
        #..........*#..# flash
        #*###.###.####.# burger
        ###....#.....#.#
        #*#.########.#.# burger
        #...#..#...#...#
        #.###.##.#.#.#.#
        #.....##%#.###.# Noah
        #.#.#.####.#*#.# flash
        #.###.####.#.#.#
        #.#v#......#...#
        #*#.########.#.# [N. Farmer]
        ###.#...^#*..#.# 50 M
        #.#|#.########.#
        #..............#
        ################

Level 3

        ################
        #*############*# 20 M / cola
        #.#..........#.#
        #.#.###.####.#.#
        #.#.#......#.#.#
        #.#.#.####.#.#.#
        #...#.##E..#...#
        #.#.#.####.#.#.#
        #.#.#......#.#.#
        #.#.####.###.#.#
        #.#..........#.#
        #.############.#
        #.....*#v......# trap
        #.############.#
        #..............#
        ################