Within all available builds of the game are sprites for three possible effects that were never implemented. One set of sprites depicts Madotsuki blindfolded, another depicts a grayscale version of her similar to the "ghost" found in Mini Hell, and a third depicts 8-bit versions of the "crick in the neck," which in the final game is instead an event where Madotsuki randomly wakes up with her head stuck facing leftward. Of note is that Versions 0.07 to 0.09 additionally feature sprites for blindfolded and grayscale Madotsuki pinching herself awake; Version 0.10 overwrites them with the "active" sprites for the Spirit Headband effect.

Additionally, the game's data contains an unused mugshot depicting what appears to be an early iteration of the Spirit Headband effect, in which Madotsuki turns into a hitodama (a disembodied soul which appears as a floating ball of fire, comparable to a will-o'-the-wisp in many Western cultures) rather than becoming invisible. A full set of sprites for this version is also present in Version 0.04's data, showing that rather than turning invisible, pressing the 1 key would've simply changed the fire's color.