Last year you used Titan Souls as an example of a boss rush, but in the jam's description you say "There's no finding the bosses, no exploring the whole level, no going through obstacles, none of that, only bosses." As I'm sure you're aware, a big part of Titan Souls is exploring the world and moving from boss to boss between fights. There are even some puzzles in order to get to certain bosses such a Onyxia, Vinethesis, ect.
This leads me to ask, what constitutes a "Boss Rush." So long as the major focus is on the bosses, is it okay to have to walk between bosses such as in Titan Souls or SotC?