The pro-level Super Smash Bros. Tournaments each have a guaranteed minimum prize pool of $300. Prize pool will increase past $300 by $10 with every entrant after the first 30. Amateur Day-Of Tournament is a trophy class.
Brain stem death is where a person no longer has any activity in their brain stem, and has permanently lost the potential for consciousness and the capacity to breathe.
When someone is brain dead, there is no blood flow or oxygen to their brain. The brain (including the brain stem which controls breathing) has ceased functioning in any capacity.