While not a script, an auto-clicker (like OP Auto Clicker) is technically allowed by most Roblox games because it simulates a human finger. Set it to 10-15 clicks per second on the dummy spawn point.
Due to the nature of script development (developers quit, games update), there is no single permanent "best" script. However, as of this writing, the community looks for three specific traits: Beat Up Dummies Simulator Script
Most scripts designed for this specific simulator share a core set of features. While versions vary, a high-quality "Beat Up Dummies Simulator Script" generally includes the following modules: While not a script, an auto-clicker (like OP