That Ape Titan...I need some music to think about this./BGM-Endless Nine
Climbing or crossing over the wall....
At first it makes one wonder why it does so, if I see him for what he is it makes sense being an Ape.
But that's way too easy and lacks an actual explanation.
Flipping over the chessboard:
By climbing over, there is no breach in the wall, yet Titans got in.Humanity is in uproar cause they believe the wall is breached sending the Stationary Guards.
Upon investigation, no breach was noted.
In other words, if word got out Titans got in, Humanity would of course believe there is a breach and it's only natural people are sent out.
Yet at the same time, if there is no breach, then that means the Titans haven't gotten in from the outside but from within the walls.
I flip the board again.
That Titan is one of high intelligence, it should know it can't do much alone even without knowledge of the gear, so climbing over by itself makes no sense unless it actually knows it has a chance.
So that Ape must have come up with a plan to be able to take on Humanity.
The Titans came from within the walls and the Ape acts like their boss.
Ok something like this:
The Ape Titan climbed the walls for the reason of there being no breach, he somehow managed to turn Humans into Titans to attack from within and make Humanity believe there is a breach.
This sends out stationary guard, afterall they guard the walls, at the same time, those Titans as we saw are taking the soldiers apart.
If it wasn't for Ymir, they'd all be dead.I daresay a half-titan is something the Ape didn't calculate.
The stationary guards need their time to arrive, we saw what happened, Nanaba,Mike,Rene all died.
If it wasn't for Ymir, the majority of the Titans would still be on the loose and could have picked apart the Stationary Guards weakening Humanity cause as said, the Ape climbs over Walls, Stationary Guards guard the Walls.
Mikasa,Hanji and Eren came in, yet that really was by chance timing.
Just my two cents on this.