If anyone ever remembers playing Imagic's swords & serpents (not the same as the NES version) on the intellivision, getting to the last boss (the dragon) and not ever figuring out how to kill it, there was a reason: The game was released commercially, however, it wasn't ever completed, due to running out of space on the cart. So, killing the dragon was impossible!
Bank-switching had been around for a short while, which would have easily doubled the available space for programming. However, it wasn't implemented in this game.
Considering the rpg-esque genre of the game and being programmed on the intellivision, which has a controller similar to the colecovision, this would be a great project for GDG, to finish up the game, port it to the colecovision system, and release it on both formats to retro/classic gamers and collectors. Article - Running the Gauntlet
DragonStomper would also be a great porting project. It was released on the atari 2600's cassette drive interface, the starpath supercharger. Forbes even named it the best title in US history of gaming in 2005.