The Spider ability allows Kirby to utilize spider webs to trap enemies. The webs themselves linger for a few seconds after being released, and any non-invincible enemy that comes into contact with a web will be encased in a web themselves. Once trapped, enemies can either be kicked into other enemies or be grabbed and thrown. Kirby and his friends can bounce off the webs created by Spider's attacks to gain extra height in a Team-Up Attack called Friend Bounce.
Kirby shoots a string at a downwards trajectory that encases enemies in pods upon contact.
Hold B and release
Kirby charges and creates a large web around himself, encasing enemies in pods upon contact.
Up + B
Kirby shoots a web needle above himself.
Dash + B
Kirby shoots a web in front of him, encasing enemies in pods upon contact.
Dash + B in midair
Kirby shoots three small webs in front of him, encasing enemies in pods upon contact.
Down + B in midair
Kirby shoots a large web below himself.
Touching a pod
Kirby kicks the pod, defeating the trapped enemy, and also damaging any enemies in the way.
B near a pod
Kirby grabs the pod.
Pod Snatch + B / Pod Snatch + forward
Kirby slams the pod in front of himself, damaging any enemies in contact, then throws the pod forward.
Pod Snatch + Up, Left, or Down
Kirby slams the pod in front and behind himself repeatedly, damaging any enemies on contact, then throws the pod forward.
L or R
Kirby encases himself in a pod. The pod juts out spikes on contact with an enemy, damaging them. Releasing the guard also damages any nearby enemies. Kirby cannot dodge using this guard.
Kirby or his friends can jump on his heart-shaped web to bounce upward, either straight or diagonally. The move is not confined to only this web; any web can be Friend-Bounced off of by pressing the jump button while over any web. They are invincible during the jump.
This ability is similar to the Poison ability from Kirby: Planet Robobot, as both of them have moves designed to set traps for enemies.
Coincidentally, both are also purple in appearance and have animal-themed headgear.
Spider is one of two Copy Abilities whose guard move is explicitly designed to damage enemies on contact, the other being Bell.
Spider, along with Animal, Cutter, and Circus, are the only abilities to include eyes as part as their design.
Skyward Web is very similar to Needle's Mega Needle.