Montezuma's Revenge ColecoVision Screenshot

Game: Montezuma's Revenge
System: ColecoVision
Montezuma's Revenge ColecoVision Screenshot: A blue key! Useful, but how to reach it?
A blue key! Useful, but how to reach it?
There are 8 screenshot groups on file for Montezuma's Revenge:
Apple II (Color)
Apple II (Monochrome)
Atari 2600 (NTSC)
Atari 5200
ColecoVision
Commodore 64
IBM PC/Compatibles (PCjr)
IBM PC/Compatibles (CGA)