The Mantle Project

Console button	Keyboard equivalent
Z	A
X	B
Start	Enter
Select	Shift
D-pad	Arrow keys

The "Original Game" demake for Gameboy systems!

This project aims to recreate as far as accurately the DELTARUNE Chapter 3 S-Rank minigame (and some extra content), as a game playable on any Gameboy console!

This fangame is made from scratch using GB Studio, using, recreating and adapting assets from DELTARUNE. Since the hardware has very strict limitations (specially non-color consoles), some changes had to be made to adequate the capabilities of the systems in terms of RAM and processing power. Most important changes will be noted at the end of the page.

Asides from the entire S-Rank boards, this game also has the following content:

• A Sound Test room, with the OST recreations played at the Minigame.
• The legend told by Ralsei at Chapter 1.
• A prophecy gallery, where the prophecy panels from Chapter 4 are visible. (Pressing the A button switches the color palette to the one from the Second Sanctuary.)
• The secret egg room from Chapter 3.
• The Chapter 5 teaser posted on Twitter & Bluesky.
• Japanese translation, made with the resources found in the game's files. (Since some kanjis could be hard to read in 8x8 pixel fonts, there is also a Kana-Only mode with its transcriptions. Please, take into account that this texts were transcripted using Jisho.org and with very little knowledge about japanese, so there may be errors.)
• Spanish translation, using the dialogues written by DeltaESP! Please, check out their translations!
• A small credits screen.
• An "about" screen, warning about this game being free to download.

Differences with the Original version

• The level layout has been adapted to fit the Gameboy screen.
• There are no HP candies, since I couldn't figure out how to implement those.
• Terrain is not destructible. Instead, changes to the terrain will occur once the corresponding level has been reached (e.g., when the player reaches LV3 on Board 1, the cacti blocking access to the ice area disappear). Additionally, the ferns on Board 1 no longer block movement between rooms.
• Some rooms have less enemies, since more than 2 enemies caused performance issues on non-color devices.
• The cloak party member from Board 2 is now playable! Again, this change was made to avoid performance issues, as 2 party members plus other 2 enemies were causing performance issues.
• Some ROOTS section enemies work slightly different.
• The bossfight has been considerably simplified. It makes use of less elements, and some patterns are easier. However, the attacks are essentially the same.
• Other minor changes may have been done.