Candles are a major collectible added in Dr. Lunatic: Supreme With Cheese as a nod to Hamumu's SPISPOPD and Amazin' SPISPOPD games.
SPISPOPD[]
In SPIPSOPD, the player must collect all candles to complete the level.
Dr. Lunatic: Supreme With Cheese[]

A Candle in the Item Editor
Candles are not required to complete levels but are necessary for achieving 100% completion; completing a level without finding all candles will result in the level appearing with a hollow green "X". Candles award the player five points upon collection. Upon collecting the required amount of candles, the player lights up.
Sleepless Hollow[]
In Sleepless Hollow, candles are treated as a collectible item and are scattered throughout the game. Candles be exchanged in the Non-Euclidean Cabin for various helpful items.