The star bits are a couple hits with low damage, enough to stun the opponent. It could be used for edgeguarding or opening a free hit. It is very weak so, they are not used often. But if the Luma dies, you can't use this move until another Luma respawns.
This attack originates from a use of Star bits in Super Mario Galaxy. If either player pointed at the screen and pressed B, a star bit would fire, stunning the enemy.
There are 2 alternate forms for this attack as with the rest of the cast in Super Smash Bros. for Nintendo 3DS / Wii U
- Floaty Star Bits - fires a single Star Bit that doesn't go that far but is slow and multi-hit.
- Shooting Star Bits - fires a single star bit that goes far and hits harder than a normal one.