Using the Game Genie code KKOUTO, is is possible to alter the AI so that they dodge when, during normal gameplay, they don't typically dodge at all. Glass Joe and Mike Tyson's are known as unused at the moment. However, Great Tiger is currently under debate as to whether he indeed will dodge in the game or not.
A YouTube video can be found here of all three boxers dodging with the code intact.
Source: Rick L