Missions were divided into small, walled-off city or forest zones. Titans, though graphically blocky (a necessity at 272p resolution), had destructible parts. You could sever limbs to slow them before going for the nape. The AI was surprisingly smart: Titans would swat at buildings you were anchored to, forcing you to keep moving.
on a portable device or within the PSP ecosystem, you have three main paths: 1. The PPSSPP Emulator Path attack on titan for psp work