A list of all the official Ultimate Play the Game releases, plus known, completed homebrew conversions, remakes, and unreleased titles.
There is a story behind the Commodore 64 conversion of Bubbler, but to condense it into just a few sentences: the game was being converted in 1987 by an intermediary company for Ultimate, called Lynsoft, but was canned before release because it wasn’t fast enough.
The 1987 MSX conversion of Bubbler is arguably better than the Spectrum original because the speed is more consistent during play, which makes it more playable. In fact, it’s a game that borders on being superb, which is unusual for the later US Gold/Ultimate games which are generally considered to be inferior to Ultimate‘s earlier titles.
Bubbler is an isometric action game that was published in 1987 under the Ultimate Play the Game banner, but in reality is a US Gold game that wasn’t developed by the original Ultimate team. And it is an insanely difficult, but playable, game.