Rhombus Dungeon

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The Rhombus Dungeon, also referred to as the Rookie Dungeon, is a location in CrossWorlds. It is a simple puzzle dungeon designed to introduce new players to CrossWorlds. It is accessed shortly after Lea leaves the M.S. Solar. The full dungeon has three sections, but Lea enters the game after the second section, so only the third is playable. Here, Lea obtains the Quickmenu, the Character Menu and Circuit.

Rookie Dungeon

The Rookie Dungeon is located on Newcomer's Bridge and serves as the final test for new Seekers.

-Encyclopedia entry

Layout[edit | edit source]

The dungeon is fairly linear. Players proceed upward through four levels of puzzles to the exit. The path splits in only one place, and following all paths is necessary to proceed.

Connecting regions[edit | edit source]

Map[edit | edit source]

Click the map for a full-resolution image.
Areas of Rhombus Dungeon
# Area Name
1 Entrance
2 Puzzle Room 1
3 Puzzle Room 2
4 Ability Room 1
5 Middle Room
6 Upper Path 1
7 Upper Path 2
8 Upper Path 3
9 Lower Path 1
10 Lower Path 2
11 Lower Path 3
12 Ability Room 2
13 Puzzle Room 3
14 Boss Room
15 Final Room

Treasures[edit | edit source]

A few treasures are collected here as part of puzzle completion. Notably, the two treasures in Ability Room 1 are the only permanently missable treasures, since it isn't required to collect them, and it is impossible to re-enter the dungeon after leaving. However, they are difficult to miss as they spawn onscreen during a mandatory cutscene. In NG+, all 6 treasures can be missed if you already have rookiegear from a previous playthrough.

Click the map for a full-resolution image.
Acc. Type Contains Location Info
1 Treasure-default.png Normal 3 × Item-consumable-white.pngSandwich Ability Room 1 Spawns during cutscene
2 Treasure-default.png Normal 2 × Item-consumable-bronze.pngGreen Leaf Tea Ability Room 1 Spawns during cutscene
3 Treasure-default.png Normal 2 × LV01Weapon-white.pngRookieblade Ability Room 2 Spawns during cutscene
4 Treasure-default.png Normal 1 × LV01Hat-white.pngRookiehat Ability Room 2 Spawns during cutscene
5 Treasure-default.png Normal 1 × LV01Torso-white.pngRookiebelt Ability Room 2 Spawns during cutscene
6 Treasure-default.png Normal 1 × LV01Legs-white.pngRookieboots Ability Room 2 Spawns during cutscene

Enemies[edit | edit source]

All enemies in the Rhombus Dungeon will not normally respawn.

Enemies of the Rhombus Dungeon
Name Sprite Drops Locations
Rhombus Enforcer 1.0
Bot-sprite.png
None Ability Room 1, Ability Room 2
Rhombus Enforcer 2.0
Advanced-bot-sprite.png
None Ability Room 2
Rhombus Turret 1.0
Miniturret-sprite.png
None Middle Room, Upper Path 3, Lower Path 3
Rhombus Heavy Turret 2.0 (Boss)
Training-turret-sprite.png
None Boss Room

Trophies[edit | edit source]

Main article: Trophies
Master of Turrets
Defeat the Rhombus Heavy Turret 2.0.
Rhombus Scavenger
Obtain all chests in Rhombus Dungeon; see #Treasures.

Role in the Plot[edit | edit source]

In CrossWorlds[edit | edit source]

The Rhombus Dungeon serves as the tutorial for CrossWorlds. As Lea skips past the start of the game, it is not shown how this tutorial is integrated into the plot of CrossWorlds.

Seekers passing through the third section of the Rhombus Dungeon, which is the only one shown, have their Quickmenu, Character Menu and Circuit unlocked, while completing several easy introductory puzzles and battles.

In CrossCode[edit | edit source]

Lea passes through the Rhombus Dungeon shortly after beginning to play CrossWorlds proper. While she completes the dungeon, Sergey tries to find any details on the Designer, but is unable to. He does, however, manage to unlock a new word for Lea, her name. Emilie is racing against Lea in this dungeon, and will always win no matter how fast Lea goes.