Bubble Bobble 4 Friends for PlayStation 4 includes a new area called “Skel-Monsta’s Counterattack” (which is also the PlayStation 4 version’s subtitle in Japan) featuring 100 new stages and the invincible enemy Skel-Monsta from the first Bubble Bobble. Skel-Monsta only appears in dedicated stages and cannot be defeated or trapped by bubbles. He will endlessly chase the player as they attempt to clear the stage by defeating the other enemies and avoiding Skel-Monsta.
The Switch version of Bubble Bobble 4 Friends—which first launched in November 2019 in Europe, followed by February 2020 in Japan and March 2020 in North America—will receive a free update alongside the release of the PlayStation 4 version that adds the new area plus the various other new elements that are being added (which will be detailed at a later date).
With the new area added to the game’s existing 100 stages, Bubble Bobble 4 Friends will feature a total of 200 stages when the PlayStation 4 version launches.