I've stopped at the fortress scene. I'm gonna write what I know about it, though.
VOHAUL STRIKES BACK - PLOT OUTLINE
NOTE: This doesn't describe all the death sequences, click events, etc. They can all be found in their respective scripts. This is just meant to make organizing easier.
In Space Quest 12, an ape-janitor is cleaning out Vohaul's fortress. Suddenly, he stumbles upon a floppy disk with the text "VOHAUL BACK-UP". He races to one of Vohauls still active bases on planet Radon in present time (Space Quest
, where he delivers the disk with Vohauls mind to the ape commanding the base. The scientists on the base have already made a robot/cyborg version of their old master, in case he should return. Using the disk, they insert Vohauls brainwaves into the cyborg. Vohaul is big! Twice as evil and with a cool chrome-ish look. The first thing that springs to his mind when he wakes up in his new body is "Wilco must pay!". Uh-oh...
Meanwhile, Roger and his new wife Beatrice are on their honeymoon on planet Romanticon-7. They are currently sitting in the Pie-ery, a restaurant where the only thing served is pie. Suddenly, an ape-patrol appear out of nowhere and attack the happy couple! Bea fights them while our "hero" is hiding under the table. Unfortunately, they never manage to alert StarCon about this, as Vohaul blows up the sattelite. Now there is only one thing to do. They must confrontate Vohaul themselves. Vohaul has taken his precautions, though. As the Aluminum Mallard flies towards Radon, it is shot down by Vohauls defense system. Yet, both Roger and Bea manage to survive. Roger goes scouting, while Bea stays at the ship. Unfortunately, she is ambushed by another ape-patrol, led by Aeryn Saxxon. A woman who went to the StarCon Academy, who is also a great admirer of Roger. When Roger returns to the ship, Bea is gone. Now our hero is stranded on an ice planet full of enemies; the shipwreck shores of a dark and strange country.
After looking a bit around, Roger comes to a beach resort built by the manic depressive robot, Al. Roger enters Al's fancy beach resort shop, full of intriguing stuff. On the desk are some free samples of the powerful (with capital P) laxative, "Blowel Blaster". Roger grabs a pill (you never know when that comes in handy) and continues his journey. He comes to a fossile and is surprised to find out that it's eye is an entrance to the caves beneath the surface of Radon. He drops down and walks a bit around. But his path is cut off by a Radonskian spewter. The only animal capaple of farting more than Pstonie D'Sane and it's even poisonous. But Roger is a clever (hmmmm) guy. He had a leftover sandwich with him, which he gives to the spewter. After this generous offer, the spewter let's Roger pass.
The cave leads up to the surface and Roger soon finds himself in the apemens bootcamp. He reaches a locked gate, and must guess the password to open it. There are some different options (who should be pretty easy), like "SLUDGE", "WILCOSUX" etc. When Roger opens the gate and walks into the bootcamp he falls into a trap, though. He steps on a trapdoor and falls into the sewers. Here, he is cought by two apemen. They try to interrogate him, but he won't say anything, which the apemen haven't tried before. So they ask Roger to stay where he is, while BOTH of them contact the HQ. Christ on a cross...
Roger walks around in the sewer a bit, which at first looks like an incredibly difficult maze. But the trick is to keep walking the same direction 10 times or so. Eventually, Roger gets to a piston room, where he has to avoid getting crushed by some huge stompers. After that, he'll only have to take the elevator on the other side.
Up on the surface again, Roger is at a landing bay. There is a small yellow spaceship docked there, but there is a problem. It's heavily guarded by apemen. Roger shall now pick up a dozen of rocks and use his trusty jockstrap to fling it at the apemen. Deja-vu! Now that all apemen are disposed of, there are two different ways to get into the ship.
Number one: Roger looks at the ship. Once he sees an orange tab sticking out from it, push it to open up the engine compartment. Slip inside. Two ape-pilots will enter the scene, get into the ship and fly you to the compound.
Number two: Get into the cockpit and look at it. Push the "POWER UP" button then look at the computer. Push the "INITIALIZE" button. The same kind of puzzle at the military camp gate. Perhaps use tougher words this time. Once that's done, you can push the "CONFIRM" button. Now you need to get the feel of the controls. There are two throttles. One throttle controls VAC, another controls HAC. Pull the VAC one back and then when you reach a point where you can see the C.C. Landing Bay, push the VAC back to the center and push the HAC forward. AUTOPILOT will take over and take you to the bay, leaving the Apemen behind!