Five Stars, or 5/5, is a common phrase in Newgrounds reviews. Even if a game is utter garbage, or they find a game-breaking bug, or even just a strange problem they personally have, people will still rate the flash five stars. Evidently the problems they had with it were good, or that the game was perfect even with the issues. Either way, most flashes are far below even a two star mark. Speaking of two stars...
Two Star[]
A subsection of the Five Star, a Two Star is given to flashes that the reviewer enjoyed to some degree. Two or One Stars are common in these reviews, meaning the newgrounds review system was implemented backwards and we are too feeble-minded to comprehend it.
