Skull Tweak in Bloons TD 6 becomes a demanding resource-management challenge in Half Cash mode, where reduced income makes every purchase significantly more important. The map’s skull-shaped layout, water areas, bridges, and line-of-sight blockers add another layer of difficulty by limiting some placement options and making efficient coverage essential. By prioritizing cost-effective towers, carefully planning your upgrades, and using the available land and water space wisely, you can build an efficient defense and successfully overcome all rounds.