Ippo flaws that he could change

Ippo is of Japanese origin and means "When converted to english it translates to A step. The meaning of it is a step at a time or reaching a certain step and progressing to another."

Hajime is the Japanese word meaning "beginning"

Over-Reliance on the Dempsey Roll

After his first loss, Ippo evolved through the creation of the Dempsey roll. However, this addition was soon exposed to be a double-edged sword. 

Through the integration of the Dempsey Roll, Ippo not only added a powerful weapon to his arsenal, but completely altered his style to a new one centred around the use of this technique. This new style consisted in persistently chasing the enemy in order to dodge a punch and dive into close range to attack, preferably with the Dempsey Roll.

Prior to his first performance on the world stage, Ippo’s one-dimensional style was described by Date Eiji as too simplistic for the world level. This idea was reinforced in the night of the fight by Ippo’s opponent, Alfredo Gonzalez, who judged his boxing as outdated and technically unremarkable. 

Despite all of the complications the Dempsey Roll would bring, this was thought of by Kamogawa as a necessary evil, a sacrifice in order to achieve victory. In the long run, all of the trials and tribulations Ippo confronted may have been the setup to an immense payoff, in the form of a weapon even stronger than the Dempsey Roll that would also conquer all of its weaknesses.

Mindset

Although Ippo has been noted to hold vast talent and potential, his lack of confidence and motivation often holds him back from performing at his best in the ring.

In terms of confidence, during fights Ippo is prone to lose his composure and will to fight when facing an opponent he considers to be superior to himself, as happened during his championship matches with Date and Sendō.

This flaw was grave to the point that Kamogawa predicted Ippo was going to lose if he ever were to fight Miyata, someone who Ippo thought of as being far ahead of him. Even in the midst of matches against opponents of lesser reputation, 

Ippo is also notoriously susceptible to panic and fall apart when facing unexpected situations. In many of his matches, difficulties arose when his opponent came up with a tactic or strategy he had not prepared for, such as Malcolm Gedo's Extending Punch and Wally's corner work.

As Takamura stated, Ippo's inability to make excuses to stand up and keep fighting is proof that he doesn't have what it takes to "cross the line" and reach the world.

Tehniques 

In the same manner that Ippo holds physical dominance over most of his opponents, inversely, he notably finds himself at a disadvantage concerning textbook boxing techniques and strategies when compared to his contemporaries, such as Miyata, Mashiba and Volg. However, despite not being his forte, the vast amount of technical expertise Ippo has accrued and polished over the course of his career is undeniable.

After retiring and gaining the insight of retrospective, Ippo started to be increasingly more aware of his own flaws and the opportunities he had missed, and, even though he didn’t intend to come back, dedicated himself fully to the study of boxing in order to improve as a trainer and as a second, refining his technical and strategic understanding tremendously.

 

Comparison Ippo techniques to other characters

Full list of techniques:

Ippo                                                         Sendō Takeshi                               Miyata Ichirō

Orthodox Boxing Techniques                  Smash                                                Detroit Style

Neck Spin                                                 Brawling Style                                  Counter

Southpaw Boxing Techniques                 Crouching Style                                 Jolt Counter

Switch Hitting                                          Low Smash                                        Cross Counter

Crouching Style                                       Deadly Smash                                    Flicker Jab

Brawling Style                                         Counter                                               Sway

Tekken                                                      Body Blow                                         Motionless Jab

Sakki                                                        Cross Arm Block                                Pin-Point Counter

Dempsey Roll                                           Fist Clench                                         Corkscrew Counter

New Dempsey Roll                                  Knuckle Drop

Diagonal Dempsey Roll                           Head slip

Body Blow                                               Sakki

Liver Blow

Solar Plexus Blow

Gazelle Punch

One Centimetre Punch

Ten Centimetre Punch

Tornado Jolt

Heart Break Shot

Counter

Jolt Counter

Combination

Overhand

One-Step Straight Punch

Turtle Strategy

Cross-Arm Block

Shoulder Block

Head Slip

Ippo is curently 27 years old.