Bubbles

There have been, at the very least, four games named Bubbles which have absolutely nothing to do with each other. For three of them you can find something here:

• Bubbles (1987), an arcade machine by Williams
• Bubbles (1997), a Color Lines for Macintosh by Maxym Runov
• Bubbles (2001), a SameGame for Windows with an old-skool charm by James Bunting

The fourth game is a Tetris variant by Dynotech Software, about which I currently have nothing.