Ninja-kun's Demon Castle Adventure (Ninja-kun Ma-jō no Bōken) is the first video game in the Ninja-kun series. It was released for arcades, on the Famicom, and MSX by Jaleco in 1984.
Ninja-kun's Demon Castle Adventure features three upward scrolling levels that repeat and become more difficult. The objective is to defeat the enemies on each screen and advance to the next screen. The player can attack with shurikens and jump on enemies' heads to stun them. Occasionally, an orb will appear and if the player collects three, a bonus level will be unlocked.
You can control this game easily by using the keyboard of your PC (see the table next to the game). However, for maximum gaming enjoyment, we strongly recommend using a USB gamepad that you simply plug into the USB port of your computer. If you do not have a gamepad, buy a suitable USB controller in Amazon or in some of your favorite online stores.