Considering the amount of time and brain power necessary to stare at a puzzle and figure out its solution, Echochrome presents the very real threat of a headache. This is especially pronounced playing on a Playstation 3 hooked up to a large screen. After a while, the aggressively white background starts to feel like colorless shouting.
This is a companion discussion topic for the original entry at http://www.quartertothree.com/fp/2008/05/07/echochrome-review/