Mega Thunder Blade

The Mega Lightning Sword (Pedang Mega Halilintar) is the gigantic version of BoBoiBoy Lightning's Lightning Sword.

Season 2 Finale
He used it along with BoBoiBoy Cyclone's Mega Cyclone Drill to defeat P.E.T.A.I in the BoBoiBoy Combo Movement. It is more powerful than the normal Lightning Sword.