Thanks for voting and for your feedbacks!
@franpa: The quality of cutscenes is quite good for a Master System, all characters can be easily recognized, and all important scenes from the movie have been recreated.
The only video I found on Youtube showing those cutscenes (
https://www.youtube.com/watch?v=S5DIGsUXq5g ) has unfortunately some commentaries in French, but you can take a look at them at 0:00 (intro), 2:23 (meeting Jasmine), 3:55 (Aladdin is sent in jail), 11:07 (Aladdin meet the flying carpet), 14:28 (Aladdin find the Lamp), 16:15 (Aladdin escape from the cavern), 25:39 (Prince Ali meet Jafar), 28:38 (Prince Ali and his girlfriend enjoying the new fantastic point of view), 33:17 (Prince Ali lose the Lamp), and the end of the movie at 41:07.
Of course, some things from the movie are missing, but there's at least one cutscene between each level.
@eternaljwh: The gameplay is very similar to the first Prince of persia, with slightly less delayed animations (Aladdin stops running way faster than the Prince of Persia, for example). But jumps have fixed height and length, so Prince of persia is the closest comparison for gameplay.
Like in the movie, Aladdin can't touch anything in the treasure room.
Barely touching an item results in an instant GameOver.
Most treasure in there are differents, and imply lots of differents sprites to be loaded in memory, instead of just being repeated all over the level. This is why the level is so laggy.
I'm not very sure about it, but I think some background elements are displayed as sprites as well (to create a more realistic depth illusion), as the Master System only consider background as a single "layer". Lag is present when tiles are loaded in the display memory, and is worst when the level has a large variety of sprites.