UFO Interactive Games

Background
UFO Interactive Games is an American video game publisher founded in 1999 as a subsidiary of Tommo, mainly to produce original games from the company or publish and localize games that were released internationally, mostly Japanese games. They usually target casual and/or family gamers, however they also published more mature games (albeit most of them get a maximum ESRB rating of Teen).

Logo (1999-unknown retirement year)
Visuals: On a white or black background, we see the capital letters "UFO" in a stylized connected font in either lavender, white, or black. Inside the letter "O" is a stylized drawing of what appears to be a "UFO" (hence the name)

Variant: The logo colors and the background may vary depending on the game.

Technique: Simply the logo fading in and out.

Audio: None, or the game’s main theme.

Availability: This appears on almost every game published by UFO Interactive.