Mirai Ninja/Stage 4

Once the background has reappeared behind Mirai Ninja and the stage title has appeared on the screen, start running to the right and jump onto a enormous gear that is rotating clockwise in order to be carried up to a connveyor belt on the next platform. Once you have jumped onto the conveyor belt, continue running to the right and throw a shuriken at each of four Kasa that are scuttling towards you to kill them before jumping onto another enormous gear that is rotating clockwise in order to be carried up to another conveyor belt on the next platform. Once you have jumped onto this second conveyor belt, you can drop down onto sixteen more levels of two connveyor belts in turn and collect an Inori (gray) powerup on the right side once you have reached the bottom in order to shrink a Zaku that is swinging its ball-and-chain around at you on the left side; and once you have thrown enough shurikens at the Zaku to kill it, you will have to jump back up onto each of the sixteen levels of two conveyor belts in turn in order to continue with the stage. You will then have to jump up to three more levels of one conveyor belt in turn so you can jump up to a small gear that is rotating anti-clockwise in order to reach the next platform before continuing to the right and jumping onto three more small gears that are rotating anti-clockwise in turn so you can jump up to a third enormous gear that is rotating clockwise in order to reach a third connveyor belt on the next platform. There is a Tourou hovering in place above this third connveyor belt which will fire a beam down on you if you try to pass under it - so you will have to jump up and slash it with your sword at close range to kill it before you jump onto the conveyor belt. Continue running to the right and throw a shuriken at each of five Hanzou Hattori that are running towards you to kill them before running under three more levels of one connveyor belt above you and collecting a Chikkara (yellow) powerup in front of you if you need the extra energy. You will then have to run back to the left and jump up to the aforementioned three levels of one connveyor belt in turn so you can jump up to a fourth conveyor belt on the next platform. Once you have jumped onto this fourth conveyor belt, continue running to the right until you come to a gap between it and a fifth conveyor belt on the next platform; if you choose to drop down this gap, you will fall onto eight more levels of two connveyor belts, four more levels of one conveyor belt, four more small gears that are rotating anti-clockwise and a fourth enormous gear that is rotating clockwise in turn. Once you have reached the bottom, you must run back to the left and throw a shuriken at each of five more Kasa that are scuttling towards you to kill them before running back to the right and jumping back onto the enormous gear that is rotating clockwise, the four small gears that are rotating anti-clockwise, the four levels of one conveyor belt and the eight levels of two conveyor belts in turn in order to continue with the stage. Once you have jumped onto the fifth connveyor belt on the next platform, continue running to the right and jump up to collect a Waza (green) powerup above you in order to throw three shurikenns at once for a short period of time just before you drop off the edge of the platform. Once you have done so, the background will fade out and the holographic image of the Evil Master Shikinami Kurosagi will appear - which means that it is time for a boss battle once again. Once the background has faded back in, Mirai Ninja will find himself in the room of the Core itself - which attacks by shooting Fireballs across the room and spawning One-Eyed Demons that can spit Kanji characters from their mouths. The room itself will also occasionally rotate ninety degrees clockwise and change its gravitational force for Mirai Ninja, which can often result in him landing on a Fireball or a One-Eyed Demon; however, the One-Eyed Demons can be killed for extra points. Once you have thrown enough shurikens at the Core to defeat it, it will explode (although any One-Eyed Demons and spat Kanji characters on screen will remain) and Mirai Ninja will be transported to the fifth stage once the background has faded out again - which, like the first and third stages, is very straightforward.