OK, I guess you have approximately the same setup as me, so click on the menu button, enter Accessories and look for a program called Terminal, Terminal Emulator or similar, proceed with clicking on it. Then, you will be presented with a prompt, in which the default location most likely is your home folder. From there, type
- {l Code}: {l Select All Code}
cd
followed with a space and the path to the 0.8 executable. In my case, I need to do
cd SuperTuxKart/supertuxkart-0.8-lin64
Your path may vary slightly. Then, just type
- {l Code}: {l Select All Code}
./supertuxkart
and copy and paste all output here. If the game hangs, you can use the key combination Ctrl + C in the terminal to kill it.