Off the top of my head
Allen is the only QB with a pass, rush and receiving TD in a game.

Only player since 1950s with 3 pass, 3 rush TDs in a game.

Most wins by the age of 28.

Most TDs in a player's first 7 seasons

Gonna be the only player with 5 consecutive 40+ TD seasons

Most games in a season (and career i think) with 2 pass, 2 rush TDs