Konami Quiz 2 is by far the game we worked on the longest (it was about 5 years). There where some hidden gems in it, like pressing P at the player choice menu to get Penguin Power (15 new players) and Pressing T or R to get cheatmode. We where also the first releasing a game on the compact flash. I guess the CF reader of Sunrise is the extension I love and used the most. It was real nice releasing the game on both formats.
Kind regards,
The Kid