Appearances in other media
Blue, yellow, silver
Clamer (, クラマー Kuramā ) ?  also known in Japan as  Shell Star (, シェルスター Sheru Sutā ) ?  is an enemy that appears in  . It is a mass-produced, clam-based Sonic the Hedgehog 3 Badnik model created by Dr. Robotnik.
The Clamers, as their name states, are
Badniks that resemble blue and yellow-colored clams with a pair of black eyes and a cannon hidden inside it.
Sonic the Hedgehog 3 & Knuckles
and its lock-on addition Sonic the Hedgehog 3 , Clamers are encountered only in Sonic the Hedgehog 3 & Knuckles Carnival Night Zone, where they remain stationary. When the player approaches one, the Clamer pulls out its cannon and fires spike balls in a straight line.
When using the
Spin Jump on a Clamer's shell, the playable character will bounce off it diagonally, like a Spring. To destroy a Clamer, the player's best option is to hit it up front with the Spin Attack at the right time. However, it is also possible to defeat them from above with the Insta-Shield.
, a Clamer appears as a collectible card.
In other media
Sonic the Comic
Clamer appears in
as part of Sonic the Comic Doctor Robotnik's badnik army. It was about to be melted down by Robotnik so that its metal could be used for a new improved badnik, after Sonic had foiled one of Robotnik's schemes.
In , Clamers appear in the Carnival Night Zone portion of the Sonic the Hedgehog world. They open and close their shells periodically, but do not attack players when they come near.
Main articles ( Sonic 3, Sonic & Knuckles, Sonic 3 & Knuckles, Sonic & Knuckles Collection) | Gallery ( Sonic 3, Sonic & Knuckles, Sonic & Knuckles Collection) | Beta elements ( Sonic 3, Sonic & Knuckles) | Staff ( Sonic 3, Sonic & Knuckles, Sonic & Knuckles Collection) | Glitches ( Sonic 3, Sonic 3 & Knuckles)
Sonic ( Super Sonic, Hyper Sonic) | Tails ( Super Tails) | Knuckles ( Super Knuckles, Hyper Knuckles) | Dr. Robotnik | Mecha Sonic ( Mecha Sonic's Super State) | Animals ( Flicky ( Flicky's Super State), Pocky, Pecky, Cucky, Ricky, Rocky)
Batbot | Blaster | Blastoid (Carnival Night Zone) | Blastoid (Hydrocity Zone) | Bloominator | Bubbles | Bugernaut | Butterdroid | Catakiller, Jr. | Chainspike | Clamer | Cluckoid | Corkey | Dragonfly | EggRobo | Fireworm | Flybot767 | Hyudoro | Iwamodoki | Jawz | Madmole | Mantis | Mega Chopper | Monkey Dude | Mushmeanie | Orbinaut | Penguinator | Pointdexter | RhinoBot | Ribot | Rock'n | Sandworm | Skorp | Snale Blaster | Spikebonker | Spiker | Star Pointer | TechnoSqueek | Toxomister | Turbo Spiker
Angel Island Zone | Hydrocity Zone | Marble Garden Zone | Carnival Night Zone | IceCap Zone | Launch Base Zone | Special Stages | Bonus Stages
Sonic & Knuckles
Mushroom Hill Zone | Flying Battery Zone | Sandopolis Zone | Lava Reef Zone | Hidden Palace Zone | Sky Sanctuary Zone | Death Egg Zone | The Doomsday Zone | Special Stages | Bonus Stages
Azure Lake Zone | Balloon Park Zone | Chrome Gadget Zone | Desert Palace Zone | Endless Mine Zone
Doctor Robotnik’s Flame Craft | Doctor Robotnik’s Whirlpool Machine | Tunnelbot | Self D-Struct Machine | Iceball | Swing’m Spikez | Hei Hou | Gapsule | Barrier Eggman | Guardian | Heat Arms | Egg Mobile-H | Flying Eggman | Red Eye | Death Ball
Doctor Robotnik’s Flame Craft | Doctor Robotnik’s Waterspout and Depth Charge Machine | Doctor Robotnik’s Jet Drill Pod | Doctor Robotnik’s Energy Ship | Doctor Robotnik’s Freeze-O-Matic | Ball Shooter | Beam Rocket | Big Arm | Jet Mobile | Hang Mobile | Egg Golem | Hot Mobile | Knuckles | Mecha Sonic | Mecha Sonic's Super State | Great Eggman Robo | The Doomsday Zone
Bound Jump | Double Jump | Fireball Spin Dash | Glide | Gliding Knuckles Attack | Hyper Flash | Insta-Shield | Propeller Flying | Spin Jump | Spin Dash | Spin Attack | Wall Climb
Air Bubbles | Balloon | Banana | Bomb | Booster | Bumper | Bumper wall | Cannon | Capsule | Change | Chaos Emerald | Cloud | Continue | Fan | Jump Stand | Monitor ( Water Shield, Flame Shield, Invincibility, Lightning Shield, Super Ring, Power Sneakers, Extra Life, S, Eggman) | Movable box | Mushroom | Pulley | Ring | Signpost | Self-Propelled Bomb | Slow-Down Shoes | Snowboard | Sphere | Spikes | Spring | Spinning Top | Star Post ( Star Circle) | Super Emerald | Switch | Transport | Vine | Zip Line
Angel Island | Barrel | Blue Knuckles | Conveyor Belt | Corkscrew loop | Crusher | Debug Mode | Fireball Cannon | Flipper | Flywheel | Freeze | Giant spear | Goal | Gravity Control Switch | Gumball | High-speed elevator | High-speed warp tube | Icicle | Jewel Radar | Perfect Bonus | Platform-raising Wheel | Pole Elevator | Relief | Reverse | Ring Shooter | Seesaw | Shuttle loop | Slot Machine | Snowblower | Sonic & Knuckles • Sonic the Hedgehog 3 | Spiked ball | Strange Relief | Time Attack | Tornado | Tunnelbot | Warp Point | Winding Tunnel | Wonderman