ike@mike-desktop ~/Downloads $ java -jar minecraft.jar
27 achievements
182 recipes
Setting user: evilytwisted, 123816722253748796
Exception in thread "Minecraft main thread" java.lang.UnsatisfiedLinkError: /home/mike/.minecraft/bin/natives/liblwjgl.so: /home/mike/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary1(Unknown Source)
	at java.lang.ClassLoader.loadLibrary0(Unknown Source)
	at java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.lang.Runtime.load0(Unknown Source)
	at java.lang.System.load(Unknown Source)
	at org.lwjgl.Sys$1.run(Sys.java:69)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
	at org.lwjgl.Sys.loadLibrary(Sys.java:81)
	at org.lwjgl.Sys.<clinit>(Sys.java:98)
	at org.lwjgl.opengl.Display.<clinit>(Display.java:132)
	at net.minecraft.client.Minecraft.a(SourceFile:184)
	at net.minecraft.client.Minecraft.run(SourceFile:657)
	at java.lang.Thread.run(Unknown Source)