Cross-cutting interaction bits for crushers, ghosts and hazards. Meanings below are from observed writers/readers only.

Bit	Meaning
1	Set by 45899; tested by 55614
2	Set/cleared by ScriptRoutine_TaskFourTickOfferItem; tested by 55644 to gate dialogue
3	Set by Update_Ghosts_RetriggerBit3; tested and cleared by Update_Ghosts
4	Set by Update_Crusher; tested by 55620 to gate dialogue
6	Set by Update_Crusher when SharedTick reaches 3; no BIT reader found
7	Set by Update_Crusher on every crusher update; no BIT reader found