Batman - Return of the Joker

"Definitely isn't as challenging as the original because of its password
system, but don't let that hold you back; this is still one of the best
NES carts of the year" -gamepro, may 1992

passwords:
MDRR 1-2  
NMLL 2-1  
NWKL 2-2  
LGZQ 3-1  
GPTW 3-2  
GNXF 4-1
KHCN 4-2  
QGVN 5-1  
WBZT 5-2  
FFHG 6-1  
CKQG 6-2  
GPZT 7-1