Thanks for the feedback and I'm glad you liked it. I tried hard to come up with something unique for this jam.
That was the intent with the Two Colors ID system - to train the player to rely on it then slowly make it irrelevant/distracting rather than helpful. Unfortunately, given the short jam time I had to go from it being always reliable (Easy Stage) to never reliable (Medium Stage) rather quickly - if this ramp-up was slower I think the effect would be greater.
I also had some ideas to use color/music and more types of human/robot targets to deceive/distract the player, but time did not permit. It also probably needs to randomise the target order (this is currently fixed so there is limited replay value).