The chain effect is used by a small amount of attacks in Super Smash Bros. Ultimate. They are exclusively used for Simon and Richter's attacks that feature the long chain of their whip.
The chain effect is entirely cosmetic: it applies a stabbing visual effect, a straight line in the direction of the attack. It is similar to stab except with green and chartreuse coloring (instead of yellow and purple) followed by a crescent-shaped visual effect going in the same direction.
List of attacks with chain hitboxes
By characters
| Character | Move(s) | Games |
|---|---|---|
| Simon, Richter |
Dash attack | 
|
| Forward tilt (whip hit) | ||
| Up tilt (whip hit) | ||
| All smash attacks | ||
| Neutral aerial | ||
| Forward aerial (whip hit) | ||
| Back aerial (whip hit) | ||
| Up aerial | ||
| Up throw | ||
| Uppercut |
By items
| Item | Attack | Games |
|---|---|---|
| Poké Ball Pokémon | Ditto: Transform (if the summoner is Simon/Richter) |
|
| List of attack effects | |
|---|---|
| Introduced in Super Smash Bros. | Normal  • Coin  • Electric  • Flame  • Slash  • Sleep 
|
| Introduced in Super Smash Bros. Melee | Bury  • Darkness  • Flower  • Freezing  • Grab  • Inert  • Reverse  • Screw  • Stun 
|
| Introduced in Super Smash Bros. Brawl | Aura  • Down  • Flinchless  • Grass  • Paralyze  • Plunge  • Slip  • Water 
|
| Introduced in Super Smash Bros. 4 | Blaster  • Magic  • Obliviate  • Stab  • Solar 
|
| Introduced in Super Smash Bros. Ultimate | Autoreticle  • Chain  • Curse  • Dedede  • Grapple  • Ink  • Mushroom  • Poison  • Rapid  • Sparks  • Fist-Down  • Scintilla 
|