I bought also the Game Programming Starter Kit, 4.0 it was - and it included Genesis and a green book, "Game Design - Secret of Sages" (de: Game Design - Geheimnisse der Profis) from Marc Saltzsman. Oh my god, although Genesis was a complete bag of trash, this book was worth the buy. And: After that I bought a similar box (I guess it was en vogue back then) with A4