It's less they've replaced the blood with blue than they've gotten rid of the blood entirely, and made it flash blue to cover that fact up. Still, it's not such a big thing, if only coz I don't play as Sacchin that much.
And my timing is too bad to pull off Last Arcs, so even though Nanaya is my favorite character, I'm not too bothered.
Tsukihime drinking game. 1. Every time a word or a phrase is repeated 3 or more times, take a drink (eg. This chair).
2. Every time Shiki claims not to understand something already explained, take a drink
3. Every time Shiki doesn't realize someone is hitting on him, take a drink.
4. Every time someone who should be dead, isn't, take a drink.
5. Every time Shiki does something ridiculous with points\lines.