Damn, stickBrix gave me a little bit of game sickness. The vast, vast majority of games with epilepsy warnings don't affect me in the slightest, but this one made me nauseous instantly. Ick.

Here is a good guide to game sickness, if you experience it. It's not necessarily serious (as epilepsy would be), but it can be very annoying to say the least. Dizzyness, headaches and nausea are definitely no fun. :-)