Guon Stones are orbital items that orbit the player and block enemy shots, while also having various additional effects:
| Icon | Item | Quote | Quality | Effect |
|---|---|---|---|---|
|
Blue Guon Stone | On My Side | 
|
Slows enemy bullets when the player takes damage and orbits faster than the others. |
|
Clear Guon Stone | Pure | 
|
Grants poison immunity. |
|
Green Guon Stone | Chance To Heal | 
|
Has a chance to heal the player when they take damage. |
|
Orange Guon Stone | Hot Rock |
|
Shoots at enemies. |
|
Pink Guon Stone | Increased Health |
|
Grants a heart container. |
|
Red Guon Stone | Dodge Up |
|
Increases the speed of the player's dodge roll. |
|
White Guon Stone | Kindles Blanks |
|
Grants an extra blank per floor. |
|
Glass Guon Stone | Fleeting Defense | 
|
Breaks upon taking damage, but can be stacked multiple times and can be found very easily (e.g. secret rooms, reward for clearing rooms, bought for low prices in shops). |
Notes[ | ]
- All Guon Stones, except for Glass, synergize with +1 Bullets and Amulet of the Pit Lord, growing in size and gaining a new ability. Each Guon Stone will also synergize with one other item related to their color or ability (e.g. Bullet Time will trigger
Bluer Guon Stone).
- This also causes them to orbit the player in a fixed position, instead of slightly lagging behind.
- All Guon Stones, except for Glass, also synergize with Tetrominator for the Tile Match synergy.
Trivia[ | ]
- Guon Stones are based upon the Ioun Stones from Dungeons and Dragons. This is further supported by their varying colors and shapes.
- Guon Stones synergizing with +1 Bullets and Amulet of the Pit Lord might allude to all three items being based on tabletop role-playing games.
- The name Guon is the word "gun", but adding an "oo" and "o" sound respectively. It is pronounced as "goo-on".