Synchronization

Full Synchro(nization) is a state where NetNavi and NetOp become one to improve focus and it puts the NetOp into direct contact with his/her NetNavi, transmitting effects on the NetNavi back to the NetOp. So, a high level of synchronization should complete the circuit enabling transmission of a NetOp's very will to his/her NetNavi, which greatly raises a NetNavi's fighting capabilities. FullSynchro fuses the mind of NetNavi and NetOp into one consciousness, getting rid of the delay between command and reaction, which can make a big difference between life and death during a battle. Later on during the end of the series, ShadeMan.EXE creates the Rush Synchro chip which allowed him to materialize into the real world without a Dimensional Area.

In the game, Full Synchro is a mechanic introduced in Battle Network 4 onwards. Full Synchro can be obtained when hitting an opponent with a chip attack while the opponent is in the middle of its attack animation. This is called "countering", and it also paralyzes the countered opponent. Full Synchro allows the player to see when an opponent can be countered (in order to maintain Full Synchro throughout the battle) and awards a x2 damage bonus to the currently selected chip. However, it can be lost when the Navi is hit or uses up an damaging chip.