1. If 'Back Guard' is introduced to Virtua Fighter (VF)

Virtua Fighter users analyze that this change will destroy the game's elaborate system.

• Collapse of the Control System: Virtua Fighter does not use the guard (G) button alone, but uses it as an attack combination key, such as P+G (throw) or K+G (special move). If the guard button disappears, the technique commands of all characters must be redesigned from scratch, or the problem of adding a separate button for throws will eventually arise.

• Collision with the Ring Out Mechanism: Ring out, an out-of-bounds defeat, is a very important element in this game. If there is a guard button, you can hold your position and block even at the edge of the cliff, but if you have to block by walking backwards, you will often fall out of the ring yourself in the process of defending.

• Loss of Frame Control Function: The G button performs the role of 'G cancel' which initializes the input buffer or interrupts the action. This makes it possible to fight with frame-by-frame precision, but if the button disappears, such delicate operation becomes impossible.

2. If 'Dedicated Guard Button' is introduced to Tekken

In the case of Tekken, gameplay itself would be possible, but Tekken's unique identity, 'freedom of movement', would be severely damaged.

• Reduced Continuity of Movement: Tekken's core is the flow of naturally mixing back input into a guard during back dash or side step. If a guard button is created separately, you have to press a button separately to defend while moving, so flexible and quick distance control like now will be stiffly cut off.

• Risk of Defense Mechanism: Currently, the upper guard is automatically maintained while back dashing, but if it is changed to a button type, every moment of inputting a back dash command becomes vulnerable. This drastically reduces the efficiency of advanced movement techniques such as Korean Back Dash (KBD).

• System Fixation: As a result, rather than Tekken's unique dynamic movements, there is a high probability that the play style will be similar to North American fighting games such as Mortal Kombat or Injustice, where you dash and then reduce stiffness with the guard button.

Summary and Conclusion

In conclusion, Reddit users believe that there is a clear reason why the guard methods of the two games have become fixed as they are now. Virtua Fighter is specialized in precise frame control and combination techniques through buttons, and Tekken is optimized for freedom of movement that utilizes space widely. Switching systems with each other will result in losing all the unique strategic fun that each game has.