In 1990 I was asked to do the Atari St Version of Teenage Mutant Hero Turtles in two months for I think £8,000. They said it had to make the Xmas release period, however when I saw what Konami had done for the Amiga version I was shocked.
I decided to do the Amiga version and the Atari ST at the same time and hopefully they would like both versions. I waited until they were 90% complete before I offered them both to the Probe who was creating all the versions for Mirrorsoft. I asked for £15,000 for the two versions a after Furgus McGovern discussed it with Mirrorsoft he said yes, to be honest how could they say no, it was cheap.
It had to make the Xmas slots because Turtles where the big thing that year and to miss it would have been professional suicide. Probe sent two producers to stay with me with me for the last 10 days or so, they took turns sleeping.
With the one that was awake, sitting next to me the whole time approving my changes, or suggesting things that needed to be done. I was working 36-48 hours straight, I eat and drank in my seat, when I was knackered or the room started to phase out I would go and sleep for 4 hours and then I would get back on it again for another 30+ hours.
It had to be done no matter what, and of course it was, I did the Amiga and Atari ST in time, they made the Xmas slots, and Mirrorsoft made over £4 million from the Teenage Mutant Hero Turtles that year while I only got £15,000, but I was happy as for me £15,000 for two months work in the 90s I felt like a rock star.
Needless to say I spent almost the whole of the next week in bed, but I did get a nice little surprise the following January, when I received an industry award for the highest game sales ever, which at the time was 80,000 units.