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I'm trying to compile a good roster to draw a little battle comic (i really need a writer) so i'm trying to get accurate and real data on the characters. the battlers will be as much at odds as possible so i probably won't go with Superman, Sentry, Galactus and the likes... Of course, world destroying attacks are out, or there wouldn't be a winner. Here's what i know

Goku - Base Level:
Strength - tops at a little over 4 tons (seen training with King Kai with 4 1 ton weights - upgraded by another Kai - barely holding himself in flight)

Speed - Unable to reach the speed of sound (otherwise they wouldn't be able to talk while in flight). Top Speed ???

Reaction Speed - Tops Speed of sound (while moving he can't be heard or seen by untrained eyes). Top Speed ???

Endurance - Able to take hits on 1 ton class and stand, good energy endurance.

Energy Projection - Clearly his best asset, able to fire beams of highly concentrated energy that can destroy moon or small planets.

Corrections:

Strength: Approaching 40 tons. During tests with South Kai, 40 tons was just a little too much to handle.

Speed: Exceeding light speed with Instant Transmission, and far surpassing the speed of sound regularly. You merely judged by when they all fly for the purpose of travelling. However, when in battle, you can't even see him. Hell, even fellow Z Fighters have trouble following him (even with ki sensing).

Note: The first time we see invisible and nigh-untrackable movement is during the Jackie Chun / Krillin fight in the 21st Tenkaichi Budokai in Dragonball. The gap between base Goku and child Krillin / Roshi is incredibly large, meaning that Goku moves several, several times over the speed of sound. The speed of lightning (approx. 1/2 speed of light) wouldn't be surprising either.

Reaction Speed: Matches his top speed.

Endurance: Able to take hits far surpassing 500 tons.

-Go to DBZ Clip 8 if you are not directed there immediately-

http://s58.photobucket.com/albums/g249/HylianElite/Dragonball Z Clips/?action=view¤t=DBZClip8mov.flv

After an in-depth discussion with Pym, we concluded that the shown rock formation is approximately 500 tons. Note, Goku was only in SSJ form when he performed that feat. He's taken hits from people stronger than SSJ form while he's been in base form.

Energy Projection: Base Vegeta during his initial fight on Earth was able to destroy the planet with his Gallick Gun, meaning base Goku could easily pull off a similar feat.

Correction: That scene with Buu and the rock formation was filler, non - canon.