=== Journey of the Prairie King ===
[[File:JOPK_Tombstone.png|thumb|left|100px]]
[[File:Yoba's symbol grave 01.jpgpng|thumb|left|80px]]
In the third level of [[Journey of the Prairie King]], when picking up a tombstone the symbol is reversed (upside-down), and using it will cast lightning upon you, turning you into an invulnerable zombie (for a limited amount of time).
{{Clear}}
=== Grandpa's wall ===
[[File:Yoba's symbol.png|thumb|left|80px]]