1) Download Maverik Java Monkey Engine libraries

32bit: http://mirrors.kernel.org/ubuntu/pool/universe/l/lwjgl/liblwjgl-java-jni...

64bit: http://mirrors.kernel.org/ubuntu/pool/universe/l/lwjgl/liblwjgl-java-jni...

2) Extract the Debian package

32bit: dpkg -x liblwjgl-java-jni_2.4.2+dfsg-3_i386.deb /tmp/lwjgl

64bit: dpkg -x liblwjgl-java-jni_2.4.2+dfsg-3_amd64.deb /tmp/lwjgl

3) Move liblwjgl.so to Minecraft folder

# mv /tmp/lwjgl/usr/lib/jni/liblwjgl.so ~/.minecraft/bin/natives

4) Download Java Monkey Engine binary package

http://code.google.com/p/jmonkeyengine/downloads/detail?name=jME2_0_1-StableDistribution.zip&can=2&q=

5) Extract Java Monkey Engine binary pacakge and change to its folder

# unzip jME2_0_1-StableDistribution.zip && cd jME2_0_1-StableDistribution/jME2_0_1-StableDistribution/

6) Replace jar files in the Minecraft folder

# mv lib/lwjgl/jinput.jar ~/.minecraft/bin/

# mv lib/lwjgl/lwjgl.jar ~/.minecraft/bin/

# mv lib/lwjgl/lwjgl_util.jar ~/.minecraft/bin/

7) Copy library files to the Minecraft folder

# mv lib/lwjgl/native/linux/lib*.* ~/.minecraft/bin/natives

8) Launch minecraft

# java -jar .minecraft/minecraft_name.jar