Think one is Thunderbolt but I am not sure. :S
"Leer"-improvised move, probably not actual leer.
Tackle (can't be legitimately learned by pikachu in the game)
There are also the improvised moves pikachu used, but they aren't actual attacks.
That's from the anime, if you mean the new event pikachu, then:
Okay, ill give you CURRENTLY known moves that Pikachu knows
There is a Ash's Pikachu event coming soon, so I think you should get it
If you saw in the end of season 1, pikachu has quick attack, electro ball, thunderbolt, and iron tail.(pikachu forgot VOLT TACKLE for electro ball)
Pikachu knows : electro ball/quick attack, volt tackle, iron tail, and thunderbolt (I'm guessing ash made his pikachu forget quick attack for electro ball)
Ash's Picachu Kinda Alternates moves in Different Shows But It's
Moves That Were Used So Far Is:
ThunderShock,Thunderbolt,Leer,Agility ,Quick Attack ,Thunder
Double-Edge,Tackle,Iron Tail ,Volt Tackle
So Far In BW it Knows,
Hope I Helped :)