Fusing Ranma with Transformers?! Good luck trying to keep track of all
the  characters!

Optimus Prime/Soun Tendo

Good thing the 'bots are rust-proof. Or at least I think they are. BTW,
you do know that the Eng. voice of Soun is Megatron in 'Beast Wars'?

Ultra Magnus/Genma Saotome

Heaven help us if he ever decides to sell Metroplex's eyes for energon
cubes.

Springer/Dr Tofu

Please don't kill Tofu!!

Arcee/Kasumi Tendo    

'Arcee'? Doesn't ring a bell...

Kup/Akane Tendo

Won't work. You need someone hot-headed.

Hot Rod/Ranma-kun

Not a bad choice.

Megatron/Happosai

"The hell with energon, get panties!!"  Do the girl transformers even
have them?!

Thundercracker/Ryoga Hibiki

Good choice.

Bombshell/Tatawaki Kunou

I just can't place the name with the face

Galvatron/Cologne

Good choice but how will you explain Happosai turning into Cologne

Scourge & the Sweeps/Shampoo & the Amazons

Shampoo'll be ticked if you put her in this role.

Unicron/Saffron

A headless Saffron?

Cyclonus/Herb

Herb needs someone with power, maybe the six changing Decepticon bot?
(Forgot the name)

Junkions/Furinkan Student Body

Who?!

Matrix/The Ring of Jusenkyo

Rodimus Prime/Ranko Tendo alias Ranma-chan

Ranma's gonna be sad that his 'girl' form is stronger...

Astrotrain/Pantyhose Tarou

Perfect!

Starscream/Mousse

If you want Mousse bad, this guy is perfect. If you want him good, I
suggest one of the Autobot jets. (Forgot the names. The five form up
into Superion though.)

-Mark