J2ME Loader

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J2ME Loader
JL.png
Developer(s) Nikita Shakarun (nikita36078)
Latest version 1.7.9
Active Yes
Platform(s) Android
Emulates J2ME
ezplusアプリ
Support ($) PayPal

Yandex Money

Programmed in Java, C
License Apache 2.0
Source code GitHub

J2ME Loader is a free and open-source Java 2 Micro Edition and ezplusアプリ emulator [N 1] for Android It's written in Java and C. This project is a fork of J2meLoader.

Overview

JL lg.png

Released in 2017, the emulator is currently capable of playing around lot of games. This is currently the highest compatibility J2ME / ezplusアプリ emulator available. Converts .JAR and .KJX files offline using its own resources. Easily launches both 2D & 3D apps. Samsung & Nokia API implemented. Supports different keyboard layouts and customization. It is highly accurate, with the right frame rate for each game, as well as vibration. Has slightly improved performance through hardware acceleration, but games won't run too fast. Runs almost every Nokia game, even ones that don't work with KEmulator or FreeJ2ME, but fails with Sony Ericsson 3D engine (Mascot Capsule 3D V3), due to the fact that the Mascot Capsule 3D V3 is almost difficult to port. This is partially implemented with JL-Mod emulator.

System requirements : Android 4.0 +

Features / Settings

  • Fast emulation
  • High compatibility
  • KDDI ezplusアプリ .kjx games are support. Required 128x160 resulation (ezplus has small size games) and font option recommend: (9 - 13 - 15)
  • Bluetooth API support
  • Touchscreen input support (Play touch games)
  • Supports external virtual keyboards and QWERTY input (PC keyboard / GameKeyboard+)
  • 3D support
  • Supported formats .JAR, .JAD and .KJX
  • Menu key remapping support
  • Buttons customisation support
  • Supports different keyboard layouts and customization
  • Individual settings for each application.
  • Highly accurate, with the right frame rate (FPS limit support) for each game, as well as vibration.
  • Hardware acceleration (Graphics mode: OpenGL ES / windows / surface) support (but games won't run too fast)
  • Screen gravity support (Up / Down / Left / Right)
  • Screen orientation (Default / Auto / Portrait / Landscape)
  • Accelerometer support
  • Scaling support
  • Immediate processing mode
Add support of external shaders filters

Only shaders for PPSSPP (.vsh format) are supported to use, you need to put them in the J2ME-Loader/shaders folder in the working folder of the emulator, further in the game settings, select the graphics output mode: HW acceleration (OpenGL ES) and select the shader of interest A small collection of compatible shaders can be taken in this repository: shaders

Game Setting
JL sm1.jpg
JL sm2.jpg
JL sm3.jpg
JL sm4.jpg
FAQs
★ In JL setting★

Q. Enable Action bar
JL menu ab.png

– Enable display of screenshot button, side menu

★ In game setting ★

Q. Resulation
JL ej.jpg

A. You need to set the resolution of the loaded game here. You can select in the settings and also specify your resolution, you can specify any for 3d games, since they often have auto-scale, supports 4k


Q. Background
JL tm bg.jpg

A. Choosing a background color under the main game image


Q. Scale
A. Image scale from the specified resolution


Q. Screen orientation
JL so.png

A. Changes screen orientation For example: landscape, portrait, auto


Q. Filter
A. This function increases the quality of the image, but may also decrease the performance.


Q. Graphic mode
A. Selecting the render mode The graphics mode only affects the final scaling of the frame and the way it is delivered to the screen

1. Software - Used by cpu to output 2D and 3D graphics

2. Hardware OpenGL ES - The mode uses OpenGL ES2.0 directly - this can be more profitable if the device does not supports newer versions

3. Hardware window - Outputs a frame in a way that is used for buttons, lists, progress bars and other ui

4. Hardware Surface - Available since Android 6.0+ uses the interface that is usually used for video output


Q. Shaders
A. Shaders are GPU microprograms that affect the image in one way or another in order to improve it or replicate the visual features of some on-screen devices, such as displays on portable consoles or old tube TVs. Shaders can significantly alter the image, but also reduce performance. In addition, shaders can have customizable parameters, if there are such an icon for accessing them will be displayed on the far right side and opposite the name of the selected shader. Here


Q. Limit fps
A. When playing fast, it allows you to reduce fps for a comfortable game, Rayman 3 128x128 for example.


Q. Touch input
JL tinput.jpg

A. Used in games with touch controls, for example games 640 × 360 or 800 × 480

You can also disable the button overlay, as they are not needed


Q. Save / Load state is unimplemented?
A. Because It's impossible, J2ME Loader doesn't emulate hardware, so it can't save the CPU/RAM state.


Q. xx.rsr edit?
A.


Q. Touch games supports
A. Yes, but multi touch don't work

Font option (small — midium — large)[N 2]

Here you can set the sizes of small, medium and large fonts that will be used by the MIDlet. Dimensions are in pixels.

If the Scaled Pixel Sizes check box is selected , the specified dimensions will be adjusted by Android to provide the same visible text size on screens with different resolutions. It is recommended to enable this setting when using virtual screen resolutions of more than 240 x 320 pixels.

The Presets button allows you to quickly set the font sizes that are most suitable for a given virtual screen resolution:

Resulation Font
240x320 18 — 22 — 26
176x220 15 — 18 — 22
128x160 13 — 15 — 20
128x128 9 — 13 — 15
Screen Option
  • Width and Height set the size of the virtual screen that will be available to the MIDlet. Many MIDlets are optimized for a specific screen resolution (usually 240 x 320) and may not display correctly at other resolutions.
  • Scale if virtual screen resolution does not match smartphone screen resolution:

enabled - the virtual screen is scaled to fit the smartphone screen off - the virtual screen is located in the center of the smartphone screen without resizing

  • Maintain aspect ratio when scaling:

— enabled - the virtual screen fits into the smartphone screen while maintaining the aspect ratio, possibly occupying only a part of it

— off - the virtual screen is stretched to fill the entire smartphone screen, possibly with distortion of the displayed graphics

  • Screen filtering when scaling improves image quality, but requires more hardware resources

Presets allow you to quickly set the default resolution of the virtual display. The table below shows a list of standard resolutions (for example, HTC Evo 3D, screen resolution 960 x 540)

Resulation Scale Aspect ratio and

screen orientation

128x128 4.21875: 1 1: 1
128x160 3.375: 1 Portrait 3.2: 4
132x176 3.068: 1 Portrait 3: 4
176x220 2.454: 1 Portrait 3.2: 4
240x320 1.6875: 1 Portrait 3: 4
202x270 2: 1 Portrait 3: 4
360x270 2: 1 Landscape 4: 3
405x540 1: 1 Portrait 3: 4
720x540 1: 1 Landscape 4: 3
960x540 1: 1 Landscape 16: 9
  • Options 1 through 5 correspond to standard screen resolutions for mobile phones. They provide the greatest compatibility (most MIDlets are optimized for one of these resolutions), but when scaling to the smartphone screen, the graphics quality may decrease slightly.
  • Choices 8, 9, and 10 provide the best graphics quality because they are calculated based on the smartphone screen resolution and do not use scaling. However, if the MIDlet is not optimized for these resolutions, it may not work correctly or not work at all. In this case, it is recommended to select a lower resolution.
  • Options 5 and 6 are intermediate in quality and compatibility. They are calculated based on the resolution of the smartphone screen so that there are exactly four physical pixels for each virtual pixel. This removes distortion when scaling. When using these options, it is recommended that you turn off screen filtering to sharpen the picture.

The Background button allows you to select the background color of the screen. This color will fill the stripes at the edges of the screen if it is not completely occupied by the virtual screen.

Recommended Devices
Resulation Devices
480x800 Samsung GT-S8000
Samsung Galaxy S II
480x360 BlackBerry 9360 / 9700 / 9020 / 9780
640x480 Nokia E6-00
360x640 / 640x360 Nokia 5800 Xpress Music / 5530 Xpress Music
Nokia N8 / C7
Sony Ericsson SATIO / U5i Vivaz
320x480 Samsung GT-S5292 / GT-S5296 / GT-S5380K / S7250
Sony Ericsson Xperia X8
320x240 Nokia E71 / E72 / C3-00 / Asha 201
BlackBerry 8520 / 9220 / 9220 Curve/ 9300
Samsung GT-S3350 / GT-S3353
352x416 Nokia N80
240x432 Sony Ericsson Aino
240x400 Samsung GT-5230 / GT-S5230
Nokia Asha 305 / 306 / 308 / 311
LG KU990 / GS290 / GS205 / KP500 / GT505 / GT400
240x320 Sony Ericsson K800i / W595a / Z750i / W595 / W910i, Nokia 6280 / 6300 / 5300 / N73 / N95 / N85 / X3-02 / X2-00 / X2-05 / X2-02 / 5000d / C2-03 / 2700 Classic / C2-01 / 220 / 216 / 215 / 222 / 225 / Asha 303 / 503 / 500DS / 202 / 300
Samsung SGH-F480 / GT-S5222 / SGH-D900 / U600 / GT-C3312R / GT-C3310
LG KS360
Motorola RAZR V8 / ROKR Z6 / E2
176x220 LG U8360 / GU230 / GU280 / GB230 / GB280 / A133 / GM205
Motorola RAZR V3 / L7 / KRZR K1
Sony Ericsson W810i
Samsung SGH-L700
176x208 Nokia N70 / 7610
128x160 Nokia 5200 / 2300 / 2720 / 3110x / 3110 Classic / 6101 / C1-01 / Asha 110 / 2600 Classic / 2630
Motorola L6
Samsung SGH-E250i / J700 / E215L / E258 / F250L / GT-B2100 / C3050 / E2210 / E2210L / E2510 / M2310
Sony Ericsson W200i
128x128 Nokia 6030 / 3220
Samsung GT-E2121 / E2120
Theme / UI
Dark White
JL dark.jpg JL white.jpg
FPS
FPS
JL FPS.png

– Shows the number of frames per second

Force full-screen
Normal Force Fullscreen
Force nm.jpg Force fs.jpg

– Vibrates the forced full screen for the application

Button Shape
  • Rounded Rectangle
L1 L2 L3 L4
JL k1.jpg JL k2.jpg JL k3.jpg JL k4.jpg
  • Oval
L1 L2 L3 L4
JL k5.jpg JL k6.jpg JL k7.jpg JL k8.jpg
  • Rectangle
L1 L2 L3 L4
JL k9.jpg JL k10.jpg JL k11.jpg JL k12.jpg
Keyboard Type
  • Rounded Rectangle
L1 L2
JL i1.jpg JL i2.jpg
  • Oval
L1 L2
JL i3.jpg JL i4.jpg
  • Rectangle
L1 L2
JL i5.jpg JL i6.jpg
Scale Type
As is Fit to window Fill window (ignore aspect ratio)
JL s1.png JL s2.png JL s3.png

APIs

API JSR Support
CLDC 1.1
FileConnection API JSR-75
Personal Information Management API JSR-75
Bluetooth API JSR-82
Wireless Messaging API JSR-120
Mobile Media API JSR-135
Web Services Specification JSR-172
Security and Trust Services API JSR-177
LocationUtil API JSR-179
Location API JSR-179
SIP API JSR-180
Mobile 3D Graphics API JSR-184
Wireless Messaging API 2.0 JSR-205
Content Handler API JSR-211
Scalable 2D Vector Graphics API JSR-226
Advanced Multimedia Supplements API JSR-234
Mobile Internationalization API JSR-238
Java Binding for the OpenGL® ES API JSR-239
Mobile Sensor API JSR-256
Contactless Communication API JSR-257
XML API JSR-280
MIDP 2.0
MIDP 3.0
Here Maps API
KDDI ezPlus API 2.5
KDDI ezPlus API 3
LG MMPP API
Mascot Capsule API
Motorola 3D API
Motorola FunLights API 1.0
Motorola Gaming API
Motorola iDEN API
Motorola VibeLight API
Nokia IAPInfo API
Nokia In-App Payment API
Nokia SMS API 0.9
Nokia UI API 1.1
Nokia UI API 2.0
Project Capuchin API
Samsung API 1.0
Siemens API
Vodafone API 1.0
Vodafone API 2.0

Known issue with workrounds

Mascot Capsule 3D V3 games don't works.

Q. Mascot Capsule 3D V3 is only few way to emulated :

1. Sony Ericsson SDK/JDK for Windows, it doesn't work on X64.

2. JL-Mod - Mascot Capsule 3D V3 partially implemented on JL-Mod but you can play almost every game, few games doesn't work properly or slow speed.

3. KEmulator for windows, regular version 0.9.3 doesn't supported but 1.0.3 modded version + Mascot Capsule 3D support here

Tips
  • Enabling filtering in some cases can greatly reduce performance. Disable this option if game is too slow.
  • Image flickering issues can be fixed by enabling the Immediate processing mode option.

How to use

Installation (J2ME / ezplusアプリ)
Android Automatic Builds
Android GitHubF-Droid
Android Play Store

Download a latest version of J2ME Loader on your Android device.

Next, Click JL +.png (button) at the lower right corner in the main J2ME-Loader Windows and select the .JAR or .KJX program on your file manager, after setup your game configures.

BT Installation
  • Requirements :

Bluetooth API implemented and use key mapping
- 2 Android Devices
- BT Controller

Download (Apps)

Java ME (J2ME)
Sites Rating
Dedomil.in ★★★★★
Phoneky.com ★★★★★
RuGame Archive ★★★★
Seclub ★★★
Dertz.in ★★★
oldhandhelds.com ★★★
Spaces.im ★★★
Mobile24.co ★★★
Siemensx70.narod.ru (For Siemens only) ★★★
  • Also recommend Archive.org full set collections here
ezplusアプリ
Ezplus.png

Japanese carrier KDDI/Au released ezplus as part of their EZweb set of standards for mobile telephony. It is based on Java ME extended with propietary APIs. The first device supporting it was released on 2001 (Hitachi C451H).

Applications were denominated "ezplusアプリ" (during the ezplus name era) and come in the form of .KJX files.

Package
283 .kjx games

* A Collection of Rare / Lost Games

Key binding / mapping

JL px.jpg

Keys : Default

Key Action
D-PAD Up
D-PAD Down
D-PAD Left
D-PAD Right
D-PAD Center F
D-PAD Left-Up
D-PAD Right-Up
D-PAD Left-Down
D-PAD Right-Down
LEFT-Soft Key L
RIGHT-Soft Key R
NUM1 1
NUM2 2
NUM3 3
NUM4 4
NUM5 5
NUM6 6
NUM7 7
NUM8 8
NUM9 9
NUM0 0
* *
# #

Screenshots

DR.jpg SU.jpg Bounce.jpg WWE10.jpg
C4D.jpg MI3.jpg SHP1.jpg KFP3.jpg
SM3.jpg CMI.jpg 1942.jpg POP08.jpg
GOWB.jpg Asterix.jpg Pac-manCE.jpg BJWT.jpg
BJW3.jpg SVB.jpg Shadowalker.jpg Madagascar3.jpg
UMK3.jpg AASO.jpg G4R.jpg NinjaP.jpg

Compatibility

J2ME Loader is currently high compatible and capable of playing thousands of J2ME games (Runs almost every Nokia games, especially GameLoft games) with ezplusアプリ games are support, more than 96.8% of the J2ME library with supports most 2D games and also 3D with some limitations (Mascot Capsule 3D V3 games don't work).

List of The Tested Java Games (Touchscreen)

List of The Tested Java Games (Non Touchscreen)

List of The Java Games with Bugs

References

  1. It's not exactly an emulator. It converts MIDlets to Android API and makes J2ME applications to run almost natively in Dalvik or Android Runtime
  2. FAQ

See also

External links