While sharing the NBA Jam name, this game’s title suggests a unique entry possibly unrelated to the original NBA Jam series by Midway. It's important to note that there is no official game called "NBA Jam 2K20: Tournament Edition" released on SNES; the inclusion of "2K20" implies it is an unofficial or fan-made creation, quite possibly a ROM hack referencing the newer NBA 2K series.  Without further information, details on the gameplay and production remain unknown.

NBA Jam 2K20: Tournament Edition

NBA Jam (Japan)