This article has a talk page!This page details pre-release information and/or media for Battletoads in Battlemaniacs (SNES).
There are two enemies not seen in the final game that are mentioned in the US manual.
Nestz is presumably an enemy that would release Wasplings, but isn't seen in the final game. Fanz also aren't seen alongside Wasplings in the final game, they're only present by themselves towards the end of the level.
An enemy called Rat Rocket, including artwork, is also mentioned, presumably acting how it did in the original Battletoads for this game's Turbo Tunnel equivalent, but isn't seen in the actual game.