At first glance, Disgaea 3 looks like it could be done on the PlayStation 2 - and because of this many questioned exactly why it was chosen to be released on the PS3 rather than the PS2. So why PS3? According to NIS America marketing coordinator Jack Niida, PS2 lacks the processing power and memory capacity for Disgaea 3.[blockquote2]It's simply because PS2 lacks the processing power and memory capacity to support Disgaea 3. PS2 could not load the same amount of data on to memory and process it like the PS3; therefore, we decided to develop it for the next-gen platform.
The character sprites for Disgaea 3 take 3~4 times the amount of labor to create compared to Disgaea 2. [We're] doing our best to improve the sprites.[/blockquote2]
NIS America: PS2 lacks the power to run Disgaea 3 [Joystiq]