user: ### NOW ANSWER:
Question: What is the maximum number of players for the sega game, hang-on (cartridge version)?
Columns: ['Main Title / Alternate Title(s)', 'Developer', 'Publisher', 'Release Date', 'Max. # of Players']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Hang-On (card version)', 'Sega', 'Sega', 1985.0, 1.0]
SQL:

assistant: SELECT COUNT("Max. # of Players") FROM "Table" WHERE "Developer" = 'sega' AND "Main Title / Alternate Title(s)" = 'hang-on (cartridge version)';