Once all three Ghostbusters (and Slimer, for that one who beamed up either Green Ghost ghost) have reappeared on the screen, six Type 10 enemies will come flying down towards you from the top, left side and right side of the screen, while firing beams at you; once you've fired a shot at each of them to kill them, they'll leave six ghosts behind (one of which has a Green Ghost powerup inside). Once you have beamed them all up, Slimer will reappear and start circling around your Ghostbuster (if he'd died after beaming up either of the Green Ghost ghosts, but if he did not, it will not have any effect!).
You'll then have to walk to the left and upward, as four Type 4 enemies emerge from two holes in the ground and come walking down towards you; once you have fired a shot at each of them to kill them, they will leave four more ghosts behind. Once you have beamed them all up, you will have to continue walking up over two angry-looking spikes (while they have receded into the ground) as two Type 1 enemies come flying up towards you from the bottom of the screen while sticking their tongues out at you - and once you have fired a shot at both of them to kill them, they will leave two more ghosts behind. Once you have beamed both of them up, you will have to continue walking up as eight more Type 4 enemies emerge from two more holes in the ground and come walking down towards you; once you've fired a shot at each of them to kill them they will leave eight more ghosts behind (two of which have a Shot Power Up powerup and an Aura Power powerup inside). Once you beam them all up a protective barrier will appear around your Ghostbuster for a short period of time - and you shall now have to continue walking up as you come to three rocks. Once you have fired enough shots at the third one to destroy it (not while your Ghostbuster is standing directly in front of the rock, because his shots will merely pass over it), it will leave a tree trunk behind.
You will then have to walk to the right and up across the tree trunk, as four Type 20 enemies come walking down towards you from the top of the screen while firing beams in five directions from their scythes at you; once you have fired off enough shots at each of them to kill them, they will leave four more ghosts behind. Once you have beamed them all up, you will have to continue walking up as you come to a fourth rock - and once you have fired enough shots at it to destroy it (again, not while your Ghostbuster stands directly in front of it due to shots passing over it), it will leave another tree trunk behind.
You must then continue walking up across the second tree trunk, as three Type 14 enemies come walking down towards you from the top of the screen while extending their heads towards you; once you have fired enough shots at each of them to kill them, they will leave three more ghosts behind. Once you have beamed them all up you shall have to walk to the right as three more Type 10 enemies emerge from a fifth hole in the ground and come flying up towards you - and once you have fired a shot at each of them to kill them, they will leave three more ghosts behind. Once you have beamed them all up you shall have to walk up over two more angry-looking spikes (again, while they have receded into the ground) as four Type 8 enemies emerge from the ground while spitting lightning bolts at you; once you've fired a shot at each of them to kill them, they shall leave four more ghosts behind. Once you have beamed them all up you will have to walk to the left and up as you come to two more rocks - and once you have fired enough shots at the first one to destroy it (once again, not while your Ghostbuster is standing directly in front of it due to shots passing over it), it shall leave a third tree trunk behind.
You'll then have to continue walking up across this third tree trunk, as three Type 5 enemies come walking down towards you from the top of the screen while laying bombs which explode into four projectiles; once you have fired enough shots at each of these to kill them, they will leave three more ghosts behind. Once you've beamed them all up you will have to continue walking up over one of eight more angry-looking spikes (once again, while they have receded into the ground) as three more Type 1 enemies come flying down towards you from the top, left side, and right side of the screen while sticking their tongues out at you - and once you have fired a shot at each of them to kill them, they will leave three more ghosts behind. Once you have beamed them all up, you'll have to walk to the right over three more angry-looking spikes (yet again, while they have receded into the ground), to collect another Green Ghost powerup; once you have done so, Slimer will again reappear, and start circling around your Ghostbuster (if he had died after beaming up either Green Ghost ghost, but if he did not, it will again not have any effect, as he will still be circling around your Ghostbuster as a result of not dying).
You will now have to walk to the left and up as two more Type 20 enemies come walking down towards you from the top of the screen while firing beams in five directions from their scythes at you; once you have fired enough shots at both of these to kill them, they will leave two more ghosts behind (one of which has a third Green Ghost powerup inside). Once you have beamed both of them up, Slimer will once again reappear and start circling around your Ghostbuster (if he had died after beaming up either Green Ghost ghost, but if he did not, it shall once again not have any effect as a result of not dying).
You shall then have to continue walking up over two more angry-looking spikes (for a fifth time, while they have receded into the ground) as you come to two Type 4 boss enemies and the game's "boss" theme starts to be heard from the Yamaha YM-2203 and YM-3812; the Type 4 boss enemies attack by appearing to the left and right of your Ghostbuster, shooting off three spreading fireballs at him, and disappearing again only to repeat the process a few seconds later. Once you've fired enough shots at both of them to kill them for 20000 points apiece, they will explode into eight red atoms (which can still kill the Ghostbusters if they hit them). Once the atoms have flown off the sides of the screen a key shall appear in front of the double doors; once you've collected it the double doors will open up. Once all three Ghostbusters have walked through the double doors the text "STAGE CLEARED!!" will appear on the screen for the sixth time - and the "Ghost Storage" theme shall then start to be heard from the Yamaha YM-2203 and YM-3812 for the sixth time as all three of the Ghostbusters walk up to it and deposit their beamed-up ghosts into it. Once they've done so, they shall proceed to the seventh stage.