Sort-of-cop: Batch, 2 characters

iI 

Without these to form if (case-insensitive), you can't use conditional looping.

Cop-cop: Batch, 2 characters, cracked

iI 

Without these to form if (case-insensitive), you can't use conditional looping.

This was originally a sort-of-cop but ended up becoming a cop-cop. For a sort-of-cop, %! should work to prevent accessing variables.