The NES did have Punch Out cartridges with Mr Dream. Mike Tyson was only part of a 3-year licensing deal Nintendo decided not to renew[1]. So all cartridges s

The NES did have Punch Out cartridges with Mr Dream. Mike Tyson was only part of a 3-year licensing deal Nintendo decided not to renew[1]. So all cartridges sold after 1990 had Mr Dream. Also, it wasn't just a palette swap (but it was similar) [2][3] [1] https://en.wikipedia.org/wiki/Punch-Out!!_(NES)#Punch-Out.21.21 https://en.wikipedia.org/wiki/Punch-Out!!_(NES)#Punch-Out.21... [2] https://static1.squarespace.com/static/50d0fc0ae4b0c75e54db0249/t/5178bd3de4b0743cbe984ed7/1366867261955/TysonVsDream.jpg https://static1.squarespace.com/static/50d0fc0ae4b0c75e54db0... [3] http://static.tvtropes.org/pmwiki/pub/images/db528cfd3fffe0773534cadd48ba1b6e.jpg http://static.tvtropes.org/pmwiki/pub/images/db528cfd3fffe07...