The region compatibility must match that of your console, otherwise this game will be incompatible and therefore will not work. A game classed as 'PAL Region Free' will work worldwide. Same applies for 'NTSC Region Free'.
Sega Master System Speedball video game. No instructions. Photo is of actual item you will receive. Generally, it is played past the title screen about a minute or two in to the game. Note, as countries differ between various formats like PAL and NTSC it is recommended you check your console is able to play the relevant region item you are purchasing.