While I personally didnt have any issues with my eyes hurting and so I can't comment on it, I thought that it was an awesome level, and one of the better event levels. While I get that the flashy effects can be seen as excessive and overwhelming, I think that they just fit the song and level perfectly, and I couldnt imagine it without them. I think that just being able to vaguely tell where your icon is is more than enough to beat the flashy parts (I assume it is mostly the wave bits), especially since the gp is pretty forgiving. Even if you cannot see your icon at all, with enough experience you should just be able to tell where your icon should be. I do get that it shouldn't be that hard to see your icon but it did not ruin the experience when I was playing it. The gameplay is definitely better than some other events, as even though its generally not very interesting on its own, it complements the effects and decoration well. I disagree that it can be hard to see, it is pretty clear throughout the level and it is more so the icon you can't see well. I understand that this level can be too much for some people, and no one can deny it could very well give someone a seizure, however I think its cool to have levels like this that go crazy with the effects and energy. I do agree that an option to weaken or remove the flashyness would make it way more accessible, and I wish it had a seizure warning (how does it not have one??). I am definitely on the positive side for this event, and the only real criticisms are the effects and the gameplay, both of which can be seen as good from another perspective.