This is another short where much of the dialog is sung, as in an opera. This one is slightly different than the typical musical Mighty Mouse shorts (but only slightly). Because I will be discussing some details, this is your spoiler warning:
In this short, Aladdin is a mouse with all the riches one mouse could want and a beautiful daughter who is unhappy (so unhappy she literally cries like a baby). Nothing can comfort her-she wants Mighty Mouse! A cat (basically Oil Can Harry in a turban) plots to make her his and tricks her into meeting him. He steals Aladdin's lamp and makes off with the girl, Mighty Mouse pops up, does battle with various creatures conjured up from the lamp, thrashes the scoundrel and saves the day-and the girl.
This is basically a melodrama in "Arabian Nights" costuming. The girl Mighty Mouse saves looks different from Pearl Pureheart, but the basic story is the same. Enjoyable, though certainly not extraordinary. Worth watching.