Generally the Mighty Mouse series was very formulaic and even early on it started to get very repetitive. By all means his cartoons were far from unwatchable and did have good points, but there are very few if any that fit my definition of great (the best mostly being merely decent). Mighty Mouse himself was not a bad character but at the same time personality-wise he was pretty one-dimensional with not a huge amount to him.
1946's Mighty Mouse output was a big number. The quality of the cartoons though were hit and miss, some were quite good and others were pretty weak. That is true of the 1946 output in general actually, with two very good cartoons, a fair share of mediocre ones and the others falling in between. 'The Crackpot King' is not quite one of the worst of the batch or the Mighty Mouse cartoons from that year, but this is only just.
There are certainly good things, none of the Terrytoons cartoons were irredeemable even the very bad ones (which did exist early on especially). The music is its usual lush and characterful self, not just adding to the action but enhancing it as well. The animation is equally great in quality, especially the backgrounds and landscapes, the characters are well drawn and the colours are really beautiful on the eye.
Of the characters, the supporting characters were far more compelling by far. Especially the wonderfully insane king, despite being a pretty typical adversary he is the only asset really of 'The Crackpot King' to have any kind of nuttiness. The dog wizard was quite fun too.
Suzette is a beautiful, smoking hot character but is also pretty bland and very little different to other female love interest characters from the Mighty Mouse cartoons and even the whole of Terrytoons' output, and mice were frequent characters with them. Mighty Mouse himself is limited and actually not hugely important to the proceedings other than gimmicky heroics in the last third of the cartoon. His role could have been filled by any other character.
Conflict lacks tension, with such mixed bag characterisation (with the supporting characters being far more interesting) and a pace that never really comes to life, and what little there is of the story is formulaic, veering on too cute and routine with not an awful lot of momentum. Not to mention that the premise is a very old melodramatic one that one had seen quite frequently in previous Terrytoons cartoons and there is a creaky ten years out of date feel to it. The gags are far too few in number, and when there are attempts at any they are not funny, tired and seen it all before. The writing is pretty corny. All common problems for the lesser entries in the Mighty Mouse series.
In summation, pretty lacklustre. 4/10