If you are writing an external memory writer for Roblox:

1. From DataModel, locate Workspace -> LocalPlayer -> Character.
2. From Character, locate Humanoid child instance.
3. In Humanoid native C++ class:
   • WalkSpeed (float at offset 0x190)
   • JumpPower (float at offset 0x1A8)
   • Health (float at offset 0x140)
   • MaxHealth (float at offset 0x144)

Writing WalkSpeed = 50.0f externally changes movement velocity instantly without modifying any Lua variables.

External memory writing bypasses userland Lua script hooks completely. Very effective.

Confirmed offsets on latest 64-bit client.