| Object | Variable name | Description |
| Acid Drop | sBlk | Block type name: empty, stone, rope start, rope main, rope end, sky, sand, trapdoor. |
| Acid Drop | sBlockCode | Block code: 0 to 9. |
| Acid Drop | sCondMet | true if the cell conditions to place the sprite are met. |
| Acid Drop | sFrame | Frame name: drop1, drop2, drop3, drop4, drop5, drop6, splash. |
| Acid Drop | sHeight | Sprite height in characters. |
| Acid Drop | sIsClone | true if the sprite is a clone. |
| Acid Drop | sIsOnScreen | true if the sprite is on screen. |
| Acid Drop | sIsOverlapping | true if there is overlap between bounding boxes. |
| Acid Drop | sSprite_cx | X coordinate of the map cell character where the sprite is located (map reference system). |
| Acid Drop | sSprite_cy | Y coordinate of the map cell character where the sprite is located (map reference system). |
| Acid Drop | sSprite_x | X coordinate of the map cell where the sprite is located (map reference system). |
| Acid Drop | sSprite_y | Y coordinate of the map cell where the sprite is located (map reference system). |
| Acid Drop | sSpriteChar_x | X coordinate of the map character where the sprite is located (map reference system). |
| Acid Drop | sSpriteChar_y | Y coordinate of the map character where the sprite is located (map reference system). |
| Acid Drop | sWidth | Sprite width in characters. |
| Acid Drop | sX | Sprite X coordinate in the Scratch reference system. |
| Acid Drop | sY | Sprite Y coordinate in the Scratch reference system. |
| Bullet | sDirection_x | Movement direction along the X axis: -1, 1. |
| Bullet | sHeight | Sprite height in characters. |
| Bullet | sIsClone | true if the sprite is a clone. |
| Bullet | sIsOnScreen | true if the sprite is on screen. |
| Bullet | sWidth | Sprite width in characters. |
| Bullet | sX | Sprite X coordinate in the Scratch reference system. |
| Bullet | sY | Sprite Y coordinate in the Scratch reference system. |
| Chameleon | sAltFrame | Frame number: 1, 2. |
| Chameleon | sDirection_x | Movement direction along the X axis: -1, 0, 1. |
| Chameleon | sDirection_y | Movement direction along the Y axis: -1, 0, 1. |
| Chameleon | sFrame | Frame name (e.g., chameleon1_left_up). |
| Main | sCollisionTimer | Collision timer: 0 to 5. |
| Main | sGameOver | true when the game ends. |
| Main | sEndOfLevel | true when a level is completed. |
| Main | sInput_x | Horizontal movement input: 0, 1. |
| Main | sInput_y | Vertical movement input: 0, 1. |
| Main | sInputFire | Fire input: 0, 1. |
| Main | sInfiniteAmmo | true means ammo is automatically refilled with gRefillBullet. |
| Main | sInfinitePower | true means life is automatically refilled to 15 units. |
| Main | sJumpStage | Fred’s jump stage: 0 to 3. |
| Map | sDirection | Movement direction number: 1 to 4. |
| Map | sIsInside | true if the cell coordinates are inside the map. |
| Minimap | sColumn | Column index in the minimap generation loop. |
| Minimap | sRow | Row index in the minimap generation loop. |
| Minimap | sValueInput | Takes successive powers of 2: 1, 2, 4, 8. |
| Minimap | sValueOutput | Takes value 0 or the value of sValueInput. |
| Mummy | sFlip | true if the mummy changed horizontal movement direction. |
| Mummy | sFrame | Frame name: step, standing, fall, pop. |
| Mummy | sState | State machine: walk, fall, bounce. |
| Object | slTreasureName | List of treasure names: bust, hieroglyph, statuette, mask, cross. |
| Object | slTreasureScore | List of scores for each treasure type. |
| Screen | sKey | “pressed” if the key is pressed, otherwise “none”. |
| Screen | sLetterSet | String containing the set of letters. |
| Skeleton | sDelta | Distance between Fred and the skeleton, in cells. |
| Skeleton | sRotation | Rotation direction: counterclockwise/clockwise (-1, 1). |
| Text | sTextCharNumber | Character index counted from right to left. |
| Text | sTextColor | Color: black, white. |
| Text | sTextType | Screen: scoreboard, hall of fame, new record, end of level. |
| Tracker | sX | Sprite X coordinate in the Scratch reference system. |
| Tracker | sY | Sprite Y coordinate in the Scratch reference system. |
| Vampire | sMode | Movement mode. |
| Vampire | sRandom | Random number. |
| Vampire | sRotation | Rotation direction: counterclockwise/clockwise (-1, 1). |