That's tight. Intellivision huh? Damn that's old. I like the way these old systems, take up less memory for their games than a modern word file.
Can past coding techniques be applied to todays game development. To create cool, large environments, yet small game files. ei. Take a games' sound. Instead of having a large number of mp3 files for audio. Replace all those with MIDI files. Sound fonts these days sound simply amazing. Have a MIDI support built in to the game itself. I'm sure the same can be applied to video as well. Maybe high textured sprites. Homebrew games being developed today, take up a lot of memory, with no real payoff. What type of programming these old companies like Intellivision, Atari, Nintendo, SEGA, etc. used to create their games.
Take SMB 3 for example. A cool story line, large number of levels, sounds, music, hud, and engine, and roughly around 512KB. That's awesome. Maybe we can learn from the past, to write tomorrows' game.