Here is how you could play Bomberman N-Gage Multiplayer

Unreal Hardware Method

Requirements and Optionals

An symbian os emulator (EKA2L1, etc.)
N-Gage Bios
A Bomberman N-Gage Rom (of the same version)
A network connection
Bluetooth

Steps
Here are the steps including the requirements and optionals above. If you already did at least one of these steps, then skip them.

1: Getting the emulator
To start off, you have to download the application of the emulator on https://github.com/EKA2L1/EKA2L1. It's pretty simple.

2: Getting the bios
You also have to get the Bios to run the game (from step 3) and the system applications in https://archive.org/details/Ngage.

3: Getting the game
You have to get the game Rom from
https://archive.org/details/Nokia_N-Gage_Bomberman_v1.0.1
and https://archive.org/details/Nokia_N-Gage_Bomberman_v1.0.2.

4: Inserting this bios
When you open the EKA2L1 application, you have to insert the SYS.ROM file to make the bios.

5: Inserting the game
Also, go to N-Gage, then go to Insert N-Gage Game so you can set the folder where the game rom is.

6: Bluetooth Setup
To make multiplayer mode functional, go to Settings, go to Bluetooth Netplay, then go to Mode, then choose an connection option other than Off (LAN etc.) so you can configure it.

6½: Repeat!
Now try starting the steps all over again in a different device.

7: Running the game
When the game is running, go to VS Mode and make sure that Bluetooth is on, then choose whoever hosts; one can be the host and one can be the client. The client chooses which (of the) host(s) he/she wants to battle, and the host chooses which (of the) client(s) that wanted to battle the host.

I hope this helps.

Also here's a ranking system if you're capable of "showing off" --> http://www.bombermanboard.com/viewtopic.php?t=2362

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also known as 「クインサイデド」