Battletoads in Battlemaniacs (SNES)

Battletoads in Battlemaniacs
Developer: Rare Publishers: Tradewest (US/EU), Nintendo (AU), Masaya (JP) Platform: SNES Released in JP: January 7, 1994 Released in US: June 1993 Released in EU: October 1993 This game has hidden developer credits.

To do: An enemy named Nestz listed in the game's manual, but doesn't appear anywhere in the game. Its sprites may still be in the ROM.

The fourth Battletoads game (although it was released concurrently with the NES version of Battletoads Double Dragon) is essentially a retake on some of the levels of the original game with updated visuals.

Hidden Credit

Present at 0x7FE0 in the ROM is a hidden credit:

RARE93
BREN GUNN!

This is also present in the prototype, though in a slightly different form:

BREN GUNN!
* RARE93 *

(Source: Ferrox)