[SPECIAL STATUS] Yes
[type a] Beast
     implications: Is not human, although there is an unconfirmed rumour that he may have been human before Professor Hojo's experiments.

[type b] Shinra Research Specimen: CLONE/Red XIII
     implications: Professor Hojo's many experiments may have unknown side-effects. There is also the slight potential for 'Red XIII' to become insane due to his exposure to Jenova cells, much as the other CLONES 1 to 12 all became insane. The fact that he is infact a beast, may mean that he has a much lower susceptability to this mental manipulation, though.