How I learned to stop being afraid of the Tennison Gambit
https://www.chess.com/blog/nayrbsoculab/scandinavian-defense-tennison-gambit
https://www.chess.com/forum/view/chess-openings/win-fast-tennison-gambit
https://www.chess.com/forum/view/game-showcase/double-knight-sac-tennison-gambit
https://www.chess.com/forum/view/chess-openings/tennison-gambit-full-of-tricks-and-traps-review
At fast time controls, Black simply does not have time to work things out over the board so it is prudent to look up the theory and a few sample games to learn how to deal with it. I went ahead and did a bit of reading and the experience turned out to be quite rewarding as this recent bullet game demonstrates.
