Bally and Marble share the same basic appearance. Both are round, limbless marbles that can withstand hydrochloric acid.
Bally is blue in color compared to the other marbles, and Marble wears a black top hat.
- Bally and Marble have outlines.
- Bally and Marble lose their outlines.
Bally and Marble do not speak. Appearances without notes are non-speaking.
In "Half a Loaf Is Better Than None" after Announcer offered the contestants 15 bonus points, he dumps his marble collection with Bally and Marble into the 10 foot deep vat of hydrochloric acid. Many Recommended Characters and all of the contestants except Tennis Ball jump into the vat and all die. Tennis Ball then remarks that he has a magnet, which attracts Announcer's marble collection with Bally and Marble in it, earning him the 15 bonus points.
Bally and Marble make a reappearance after a 9 year absence in "X Marks the Spot", where they are seen on the shelf where Coiny kept his glue that Lollipop swapped for paint. They are seen with redesigned assets notably lacking outlines.
- Dissolution Resistance: In "Half a Loaf Is Better Than None", they are able to withstand a 10 foot deep vat of hydrochloric acid and survive, unlike everybody else who had jumped into the vat.
- It is currently unknown who currently owns them. Announcer had left Goiky in "Return of the Hang Glider", leaving Tennis Ball to continue owning them, but then appeared on Coiny's shelf in "X Marks the Spot".