> A video emulator is piece of software that allows a user to run a video game on a platform different from that for which is was written. Many people use emulators to play unlawfully obtained pirated games.

Wording something as definition implies that the statement both contains no falsehoods and is complete.

Saying that the purpose of an emulator is to play pirated games is not true. I use an emulator to play Super Smash Bros Melee on my computer, with the ROM obtained from the disk I own. People have modded the Super Smash Bros Melee game to allow for online play, something that would be impossible without an emulator. People used emulators to find a bug in Ocarina of Time that would allow them to beat the game (played on original hardware) faster.

But the statement is written to confuse a non-technical fact finder into thinking that the only purpose of an emulator is to play a video game without paying for it, or to help others to do so. And it's done so because that Nintendo doesn't believe that you own the game you buy from it.