has chara and asriel ever attempted to get past the barrier by holding hands? if you think about it that could work since you need one monster and one human soul to get past the barrier and there is nothing in the game that disproves that
I’m afraid that would not work. The game explicitly states that “only beings with a powerful SOUL can leave.” Alphys later clarifies that it requires both a human and monster soul to pass through the barrier. This is likely because combining a human soul and monster soul together results in a more powerful soul.
ALPHYS:A human SOUL isn’t strong enough to cross the barrier alone.It takes at least a human soul…And a monster soul.…If you want to go home…You’ll have to take his soul.You’ll have to kill ASGORE.I’m sorry.
Hand holding would not work as the human and monster are two separate beings.