[The background changes to a snow-covered garden. There's already a pond in place, taking up most of their view in the foreground, but Faruzan can adjust its shape and add or remove fish and plants! (Granted, there's only a small selection of winter-hardy plants available.)]

I wouldn't be able to explain the technology to you, but it basically all comes down to digital data. Someone created the fish in a computer program that lets you paint "three-dimensional" items, then they animated it so it'd move around, then they associated different animations with different actions you can take in the game.

[This was probably just a bunch of random words to her again...]

If you're really into this I'm sure there are courses at the local places of learning in which you can enroll, but honestly, most people simply have fun with it.