Mob Wall Climbing

This mod will make all monster entities other than bosses, even modded, that are smaller than width < 1 (Most humanoid creatures), and if there is solid blocks around them to stack on top of each other to get over walls.

This mod will make it so that no wall is truly safe against hordes of mobs. This mod is recommended to be played in a zombie apocalypse mod pack, and with slower entities for best outcome.