Big Circles is just designed as a free little time killer; 60 second rounds where the goal is to get as high a score as possible (score = ending HP).
You have to avoid bigger circles and eat smaller circles. As you gain health you get bigger so get more targets!
There are 4 modes available (unlock based on progress):
Normal - Circles outside vision are grey, inside 'radar' range they are green if edible, red if dangerous (steal your health) and black if deadly (instant kill)
Hard - Night - As for normal but you cannot see anything outside 'radar' range
Hard - Blind - No radar
Insane - Harder.......
Simple controls (arrow keys) and enter will restart the level when you die so you can churn through a few rounds quickly then be on your way!
Hopefully it brings a bit of enjoyment to at least a few people!
Available for download or to play in browser!