- "Moves up and down by a string suspended from a tree. Blue Deelers drop down to the ground to attack Link."
- — Zelda II: The Adventure of Link manual
Deelers are enemies from Zelda II: The Adventure of Link. These spider-like monsters come in multiple colors, with the blue version being stronger than the red version. Deelers live in the branches of trees in forests and descend from the trees on a silky thread to attack. While red Deelers retreat back into the trees immediately after an attack, blue Deelers stay on the ground, hopping around to attack their prey. Deelers of both colors appear in both western and eastern Hyrule, but the Deelers in eastern Hyrule are significantly stronger.
| Characters |
| Dark Link · Ganon · Link · Princess Zelda —Full list of characters |
| Bosses |
| Horsehead · Helmethead · Rebonack · Carock · Gooma · Barba · Thunderbird · Dark Link |
| Hyrule |
| Western Hyrule · Eastern Hyrule · Lesser Hyrule · Maze Island —Full list of locations |
| Dungeons |
| Parapa Palace · Midoro Palace · Island Palace · Maze Island Palace · Ocean Palace · Hidden Palace · Great Palace |
| Equipment |
| Items |
| P Bag · 1-up Doll · Magical Sword · Magical Shield · Candle · Flute · Handy Glove · Hammer · Raft · Boots · Magical Key · Cross |
| Spells |
| Fairy Spell · Fire Spell · Jump Spell · Life Spell · Reflect Spell · Shield Spell · Spell Spell · Thunder Spell |
| Quest Items |
| Trophy · Water of Life · Kidnapped Child · Six Crystals · Triforce of Courage |
| Races |
| Fairy · Hylian |