This is true. The colors and effects they have come from a pool but you never know what color will do what effect. There are even items that make it so that none of the pills have negative effects, changing the outcome even more.
Ok listen to me, just like when you said those Skullgirls characters didn't exist because an out of date website didn't list them YOU ARE COMPLETELY WRONG.
The pills randomize each playthrough.
Actually last time I was completely right. I'll believe the official website over some random guy on the net any day.
Also, someone wrote down what they were somewhere. I've learned that if someone takes the time to write it down, it must be true.
Except the website was outdated. The characters were on the Steam page and in a number of official announcements, you ignoring everything that says you're wrong doesn't make you right. You are wrong about the pills, and you were wrong about the about the characters. http://store.steampowered.com/app/245170/
Now go play the game, do 2 short runs and get each pill, you might notice THEY DON'T DO THE SAME THING IN DIFFERENT PLAYTHROUGHS. You dingus.