Pikachu's Volt Tackle is tricky to control, but once you get the hang of it and carefully plan out your movement, it's a great Final Smash, sweetie.
Just grab, tilt down, and immediately grab once they bounce. It really depends on the character you're up against sweetie. XD In irony, I chain grabed King Dedede as Pikachu. XD
I wish Mega Man, Bomberman, and Pac-man were in the game. XD I wish they also kept Dixie Kong (Some left over data for her is still in the game), as well as the other characters that were removed.
Oh, me and my brother have tag matches all the time. X3 We usually play against each other to keep our skills sharp, sweetie. XD