Put up a disco ball and then I'll show you how to party.
— The Party Girl
The Disco Ball is a novelty Hardmode light source that can be placed on the underside of a block and will generate short pulses of colored light that cycle through the light spectrum (on the , it will cycle through red, green, and blue). It can be toggled with versionwires. It is purchased from the Merchant in Hardmode for
- The Disco Ball does not count as a light source for house requirements.
- Its effect is much more noticeable in darker areas than when placed in a bright spot.
- The Disco Ball's flashing is synchronized with the color cycling of Rainbow Bricks. Therefore, it can hardly be seen in a room of Rainbow Bricks.
- Despite the party girl's quote "Put up a disco ball and then I'll show you how to party.", the disco ball is actually sold by the merchant and not the party girl.