There were more changes made to the interior of the alchemical boat. After entering through the teleportation portal, one would arrive at a tiny cabin which could only be accessed from the exterior of the boat. If a person wanted to leave, they would have to go to another cabin. This was in stark contrast to the original design.
The original teleportation portal was bidirectional, and the entrance and exit were at the same location. With the current design, the alchemical boat was more like a warship. Even though Judikaka was not human, there were wars in the death dimension too. Hence, when it came to making weapons more logical, Judikaka was superior to Saleen.