Kaboom: The Mad Bomber Returns (also know as Kaboom! 2) is a cancelled action game that was in development in 1993 / 1994 by High Voltage Software / Activision (?) for the Super Nintendo. The game was based on the original Kaboom! for the Atari 2006. Gameplay in the original Kaboom! consists of using a paddle controller controller to catch bombs dropped by the “Mad Bomber”, so we can assume that the SNES version was going to be similar.
A prototype of Kaboom SNES was found in 2001 by an user of the Atari Age forum:
It look’s to pretty much to be a “Technology Demo”. Good at best. Very repetetive. There’s some-sort of mad doctor on a flying carpet, throwing down bombs to a kid who runs back ‘n’ forth trying to catch them. Not very impressive and very slow. […] This version look’s as though it was done by High Voltage Software.
Celine was able to find a couple of screens in Game Power (an italian magazine) issue 20, while some other info were found by Zwackery from the Atari Age Forum, in VideoGames magazine (vol. V, no. 11, Nov 1993). As we can read from the VGM article, Kaboom: The Mad Bomber Returns was shown at the summer CES 1991 in Chicago, along with the cancelled “River Raid: The Mission of No Return” remake.
It seems that “both got killed because the developers couldn’t push the SNES boundaires with either one” as noted by Klove in the Atari Age Forum.