You could try old systems. The GameBoy Advance is reasonably well-documented[0] (enough for me to write a simple game for it over the summer as my first real C

You could try old systems. The GameBoy Advance is reasonably well-documented[0] (enough for me to write a simple game for it over the summer as my first real C program), and a hacked 3DS[1] can run the game on real GameBoy hardware through Virtual Console injection. [0] http://coranac.com/tonc/text/ http://coranac.com/tonc/text/ [1] reddit.com/r/3dshacks