The game contains 100 mini-games, all with simple controls. Hudson provided some sample game names, such as "Tank Battle 2", "Super Stunt", "The Hard Puncher" and "Dive Danger 50%". No gameplay details for any of these mini-games was revealed, but in most cases the title of the game seemed to give a good indication of what the game entailed.
O-warai Party Game 100 Bakusho! will be released in Japan in 2010.
I doubt Hudson makes money based on how well Mario Party games do. I would love if someone from NWR could ask them, but I would assume the only money Hudson gets is for making the game, so they make the same amount whether the game sells 2 copies or 10 million copies.