One of FROM’s biggest hurdles in converting their PS2 Armored Core titles to the PSP was the control scheme. The inherent difference in the number of buttons on the dual shock and the PSP meant that the controls simply couldn’t be the same. This is evidenced by how FROM’s first portable Armored Core game, Formula Front, was initially an AI arena only. FROM eventually did implement player control, but with automated vertical aiming due to the absence of the L2 and R2 buttons on the PSP. This made for what enthusiasts considered a dumbed down Armored Core experience.
With the release of Armored Core 3 Portable and the announcement of Silent Line Portable, many players wondered how FROM would work around this button handicap. The image below shows how they decided to lay out the default controls.
It’ll be interesting to see how these changes will affect playstyles and even AC designs.