D-WAR is a game related to digits. A stream of digits will move down the screen and invade the world. We need to quickly select the target digit by pressing the [+] key and shoot them down by pressing the [=] key afterwards.
Besides the digits from 1 to 9, there will have extra monsters coming out. Shooting them down by selecting the [n] and you will get extra 100 points.
After completing each stage, a secret code will be displayed. Please remember this as it will be useful for stage jumping. Type this secret code in the main menu and then press [=] key.
Good Luck !