Disgaea: Afternoon of Darkness Glitch 01 (Foresight Glitch)

The PSP version of Disgaea has an interesting glitch. Though it's called the "Foresight Glitch", it also affects the Tainted Staff. They may appear normal, but when you enter their Item Worlds, you'll see a familiar face several times over. There's also a chance to have a pre-subdued Specialist present, often at an impossible level, so this can be exploited hard if you can pass the Dark Assembly bills and afford the price tag.
Recorded on Steam Deck running Retroarch under the PPSSPP core.