trying to cut Breakable Blocks.
Big square blocks.
Breakable Blocks are obstacles that appear in  . They are square blocks that can be found blocking the player's path in the stages.
Sonic and the Black Knight
The Breakable Blocks are big square blocks. They are primarily a greenish grey color with a brown circular mark on one side. More volatile ones are reddish brown with a flame icon on them.
An explosive Breakable Block below an unbreakable one.
The Breakable Blocks are encountered on the paths during several Missions. In gameplay, they function is to barricade the player's path, being arranged in stacks and rows so the player cannot process. Though the player can slip between them, the best way to get by is by destroying them. However, it takes multiple sword slashes to destroy them.
Beside the regular ones, there are another type of Breakable Blocks which have a flame symbol on them.
When attacked, these blocks make a brief countdown before creating a wide explosion that not only destroys obstacles and enemies, but also damages the player as well. These blocks only appear in the Mastery missions, where the player has a limited amount of attacks to defeat the foes with and has to use the exploding boxes to take out multiple enemies.
Sonic and the Black Knight
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Sonic ( Excalibur Sonic) | Caliburn ( Excalibur) | Merlina ( Dark Queen) | King Arthur | King Arthur's horse | Blacksmith | Nimue | Lancelot | Gawain | Percival | Galahad* | Lamorak* | Shadow* | Knuckles* | Blaze* | Amy* | Merlin | Townsperson
Grand Kingdom Camelot Castle | Shrouded Forest | Knight's Passage | Deep Woods | Dark Hollow
Outlands Misty Lake | Molten Mine | The Cauldron
Highlands Titanic Plain | Crystal Cave | Great Megalith | Dragon's Lair
Avalon Faraway Avalon
Crawling-One | Eyeball-One | Fish-One ( Red, Blue, Yellow, Purple, White) | Flapper | Giant-One | Soldier-One ( Sword, Spear, Axe, Crossbow)
Mist Dragon | King Arthur | Lancelot | Gawain | Percival | Earth Dragon | Dark Queen
Guard | Homing Dash | Jump Dash | Lock-on
Grinding | Wall Climb | Wall Shuffle | Wall Slide
Soul Surges Arthur's Soul Surge | Blacksmith's Soul Surge* | Chaos Punishment | Excalibur Sonic's Soul Surge | Flames of Kilekion | Gail Meteor | Galahad's Soul Surge* | Rose Typhoon* | Sonic's Soul Surge
Steel Longsword | Cursed Longsword | Rusty Longsword | Bronze Longsword | Katana | Cursed Dagger | Rusty Dagger | Bronze Dagger | Steel Dagger | Cursed Rapier | Rusty Rapier | Bronze Rapier | Steel Rapier | Cursed Spear | Rusty Spear | Bronze Spear | Steel Spear | Cursed Axe | Rusty Axe | Bronze Axe | Steel Axe
Steel Gauntlet | Cursed Gauntlet | Rusty Gauntlet | Bronze Gauntlet | Cursed Helmet | Rusty Helmet | Bronze Helmet | Steel Helmet | Samurai Helmet
String of Pearls | Mermaid's Tear | Pendant of Eons | Chain Bracelet | Thorn Anklet | Flower Amulet | Wooden Belt | Bright Red Ribbon | Expensive Broach | Rabbit's Tail | Poison Broach | Stone Broach | Ice Broach | Cure-all Broach
Healing Potion | Healing Draught | Antidote | Superior Antidote | Paralysis Cure | Paralysis Immunity | Stone Protection | Petrification Immunity | Vial of Calm | Philter of Tranquility | Fiery Quaff | Hot Fiery Quaff | Herb of Toughness | Herb of Strength
Arthur’s Legend 1 | Arthur’s Legend 2 | Arthur’s Legend 3 | Arthur’s Legend 4 | Arthur’s Legend 5 | Tome of Arms | Tome of Armor | Tome of Medicines | Tome of Amulets | Tome of Games | Tome of Jewels | Tome of Minerals | Tome of Plants | Tome of Feasts | Tome of Rings | Encyclopedia Arcana
Yellow Ring | Green Ring | Red Ring | Blue Ring | Aqua Ring | White Ring | Purple Ring | Poison Ring | Doughnut | Onion Ring
Carnation | Violet | Daffodil | Sweetpea | Lily | Rose | Larkspur | Gladiolus | Morning Glory | Marigold | Daisy | Narcissus | Herb
Garnet | Amethyst | Aquamarine | Diamond | Emerald | Moonstone | Ruby | Peridot | Sapphire | Opal | Topaz | Turquoise
Pawn | Rook | King | Queen | Bishop | Knight | Ace of Spades | Ace of Clubs | Ace of Hearts | Ace of Diamonds | Joker | Medal of Sonic | Medal of Gawain | Medal of Lancelot | Medal of Percival | Dart | Dartboard | Die | Big the Cat Mask | Building Block | Fishing Pole | Doll
Stone | Lump of Iron | Lump of Bronze | Aluminum Ore | Skipping Stone | Rock Salt | Beautiful Crystal | Ice Crystal | Lava Jewel | Flintstone | Mintstone | Gold Ingot | Quasi-Magic Stone | Mithril | Hardtack | Burnt Bread | Moonrock | Wavestone | Dragon-Eye Stone | Orichalcum
Moist Cookie | Tart | Fresh Milk | Spongy Bread | Aromatic Tea | Chilidog | Herb of Calm | Lollipop | Ham
Flag | Ballista Arrowhead | Raven's Feather | Mouse Tail | Oar | Lantern | Broken Trap | Egg | Cheese | Magical Moth Dust | Plant Thorn | Giant Flower Seed | Troll's Eyelash | Broken Lock | Rabbit Fur | Lizard Tail | Prison Key | Iron Shackle | Highland Mushroom | Silk Clothing | Silk Shoe | Dragon Scale | Dragon Claw | Dragon's Fang | Shovel | Pickaxe | Wheelbarrow | Bat's Fang | Broken Brick | Soft-Boiled Egg | Lithograph | Letter
Swords Clarent | Arondight | Rubious | Morglay | Gastiga | Secace | Altachiara | Durendal | Aduro Cutlass | Aduro Khopesh | Precieuse | Espadon | Ddraig Goch | Galatine | Battleaxe | Labrys | Hauteclaire | Gringolet | Balmung | Sanglamore | Chrysaor | Almace | Caledfwlch | Flaming Kopis | Flamberge | Laevatein | Corrougue | Colada | Ktuga | Brinnig | Solais Rapier | Claiomh Solais | Fragarach | Curtana | Ignis Fleuret | Glorious | Joyeuse
Mastery Star | Map | Skill Scroll | Music Notes | Knight’s Seal | Knight’s Banner | Emblem Component | Painting | Deadly Swordsman | Windblade | Destroyer | Quickblade | Blade without Equal | Despised One | Chicken | Weakling | Coward | Ruffian
English voice actors
Jason Griffith ( | Sonic, Shadow, Lancelot, Lamorak) Casey Robertson ( | Caliburn) Melissa Hutchison ( | Merlina) Gavin Hammon ( | Arthur) Amy Palant ( | Blacksmith) Lisa Ortiz ( | Amy, Nimue) Dan Green ( | Gawain, Knuckles) Bella Hudson ( | Percival, Blaze) Pete Capella (
Japanese voice actors
Jun'ichi Kanemaru ( | Sonic) Hiroaki Hirata ( | Caliburn) Mamiko Noto ( | Merlina) Hidekatsu Shibata ( | Arthur) Ryo Hirohashi ( | Blacksmith) Taeko Kawata ( | Amy, Nimue) Kouji Yusa ( | Shadow, Lancelot) Nobutoshi Canna ( | Gawain, Knuckles) Nao Takamori ( | Percival, Blaze) Daisuke Ono ( | Galahad) Daisuke Kishio (
Face to Faith Knight of the Wind | With Me | Fight the Knight | Through the Fire | Live Life
Acts of Chivalry | Apple | Barrier stone | Bat | Battle Mode | Black onyx | Bottomless pits | Breakable Block | Butterfly | Cavalier Style | Chaos Blast | Chaos Control | Chaos Spear | Corner Pole | Dash Panel | Diehard Challenge | Dragon ( Thunder dragon) | Drifting | Explosion Trap | Fairy | Followers | Giant spear | Goal Plate | Goal Ring | Grind Rail | Hit | King Arthur and the Knights of the Round Table | Knight Style | Knight's Honor Bonus | Knights of the Round Table | Knights of the Underworld | Legacy Mission | Log | Minecart | Mushroom | Mystery Circle | Paladin Style | Ramp | Reflecting Pool | Ring Container | Rich Ring | Ring | Sacred sword | Scabbard of Excalibur | Slime | Skill | Sonic and the Black Knight (manga) | Soul Gauge | Soul Gauge energy | Spiked ball | Spikes | Spring | Title | Treasure Chest | Treasury | Troll | Underworld | Will 'o Wisps | World of Camelot
"*" Appears exclusively in Battle Mode.