Pokemon Strategy Classic Emulator GBC RPG

Pokemon Diamond Hack

Y9 » Pokemon Games » Pokemon Diamond Hack

About the Game

Pokémon Diamond Hack is a Game Boy Color RPG based on Keitai Denjū Telefang: Power Version, a Japanese game released by Smilesoft and developed by Natsume in 2000. Despite its name and Pokémon-themed packaging, it is not an official Pokémon game and is unrelated to the Nintendo DS game Pokémon Diamond.

The game became known in the West through an unauthorized English bootleg. The bootleg uses the name Pokémon Diamond and replaces the original Japanese text with a poorly translated English version.

📱 A Monster-Collecting RPG With a Phone Twist

Instead of catching Pokémon, you meet creatures called Denjuu. Your main character uses a special mobile-phone-like device called the D-Shot to communicate with them.

After defeating some Denjuu, they can give you their phone number. You can then call them when you need help in battle.

The D-Shot has several useful functions:

Stores Denjuu phone numbers.
Allows you to call Denjuu for battles.
Contains a picture book.
Records incoming calls.
Provides access to messages.
Includes a map function.
Has customizable ringtone options.

⚔️ Battles Work Differently From Pokémon

The battle system has an important difference from Pokémon. You can have multiple Denjuu fighting on your side.

One Denjuu normally accompanies you.
You can call additional Denjuu during battles.
Battles can involve up to three Denjuu on each side.
Speed determines when Denjuu can act.
Each Denjuu has its own attacks.
Denjuu have HP, Attack, Defense, Speed, Denma Attack, and Denma Defense statistics.

Denjuu also belong to different habitat types. Their relationships create a weakness system between types such as Mountain, Sky, Forest, Aquatic, Desert, and Grassland.

🌳 Explore the Denjuu World

The story starts with Shigeki, a young boy who obtains the D-Shot. An accident involving an antenna tree transports him to the Denjuu world.

The D-Shot is important because antenna trees can connect different places and worlds.

As you progress, you explore the world, meet Denjuu, obtain their phone numbers, and call them for assistance.

📞 The Phone System Is the Main Feature

The telephone mechanic is what gives Telefang its identity.

Instead of simply catching creatures and carrying them in a conventional party system, you build a network of Denjuu contacts.

When you defeat a Denjuu, there is a chance it will give you its phone number. Later, you can call that Denjuu when you need assistance.

Some Denjuu may take longer to arrive if they are located far away, and there are situations where a called Denjuu may not arrive.

⚠️ Why This Version Has a Bad Reputation

The Pokémon Diamond bootleg is known for its poor English translation and technical problems.

Players have reported problems such as:

Save-game loading failures.
Crashes in certain situations.
Problems with secret Denjuu.
Glitches caused by some menu actions.
Poorly translated dialogue.

These problems belong to the unauthorized Pokémon Diamond bootleg rather than the original Japanese Telefang game.

The original Keitai Denjū Telefang has since received a completed fan English translation, which provides a much more accurate way to experience the actual game.

🎮 Game Controls

The original Game Boy Color control layout is:

D-Pad — Move / navigate menus
A — Confirm / interact
B — Cancel / go back
Start — Open the main menu
Select — Access D-Shot functions in relevant screens

For EmulatorJS, these correspond to the virtual Game Boy Color controls.

⭐ What Makes Pokémon Diamond Hack Interesting?

The most unusual part is that the game underneath the Pokémon Diamond name is actually Telefang.

You get:

A Game Boy Color RPG.
A creature-collection system based on Denjuu.
A phone-based recruitment mechanic.
Multi-creature battles.
A large world to explore.
Different Denjuu habitats and weaknesses.
A D-Shot with several functions.
A famously strange English bootleg translation.

The game's history is also unusual. It became one of the better-known examples of a non-Pokémon game that was repackaged and sold under a Pokémon name.