Celine linked us to the official Platinum Games Site / Blog, in which they have wrote some interesting posts about the development of their game: originally Jack’s character design was different and they tried various color palettes before choosing the final one.
We worked on our first proposal for two weeks, when a programmer walked by and said, “This is great! It feels fresh! I’ve never seen a game like this!” His words were enough to know that the first proposal, black & white, was what we should go with.
There were times when I thought to myself, “Ahhh… I wish I could use some grey…” I even tried it in a few tests, but it just didn’t look good. […] For instance, even though your human eyes see the two-tone as black and white because of the contrast, we actually put desaturated yellow into the game. We would also up the contrast on the far reaches of the background instead of obscuring them. We used lots of little tricks like this.
Many Bloodbath Challenges were cut from the final game, as the one with an huge slingshot:
One day, the environmental kills team were stressed out trying to think up a new Bloodbath Challenge. Well, actually, we were stressed because the challenge that we wanted to go with had been rejected by Nishikawa-san. It would have been a Bloodbath Challenge where you would have fired at enemies with a giant slingshot. It had great Wii Remote controls, and we were almost done programming it; however, unfortunately it was deemed to be too run-of-the mill, and didn’t get the kind of reaction we were shooting for with the challenges. Thus, we didn’t use it.
Also, a removed / censored kill can be seen in the video below.
Thanks to Celine for the contribution!