Big Nose the Caveman

Smiley Test
All known NES games from Codemasters (Bee 52, Dizzy The Adventurer, Fire Hawk, Linus Spacehead's Cosmic Crusade, Micro Machines, MiG 29: Soviet Fighter, Quattro Adventure, Quattro Arcade, Quattro Sports, Stunt Kids, The Fantastic Adventures of Dizzy, and Ultimate Stuntman) are based on the same stub library. As a result, all of these games, including game collection versions, include a "smiley test" of PRG ROM integrity and CHR RAM consistency.

To trigger the PRG test, hold Up + Down + Left + Right + A + Select + Start and press Reset. To trigger the CHR test, hold Up + Down + Left + Right + B + Select + Start and press Reset. If the PRG checksum matches with the internal value or the CHR RAM chip has no bad cells, the program will display a green smiling pixel face; otherwise, it will display a red crying pixel face.

Galoob logo
Apparently, the Galoob logo was supposed to appear on the title screen, but it's unused. The "Presents" text isn't used, either.