1. How to Start
- Open Pet Simulator 99 in Roblox.
- Open AHK Vault, choose Pet Simulator 99 and launch Fuse Pets.
- In the Fusing tab, type the pet name.
- Press
F1to start.F2pauses andF3exits.
The macro opens the Super Computer, opens the fuse machine, searches for the pet, then shift-clicks through your inventory slots and confirms each fuse.
2. Settings
- Pet name to fuse: must match the in-game search exactly.
- Typing delay: how fast the macro types the name.
- Delay between actions: raise it if clicks happen before menus have opened.
- Centre the Roblox window on start: moves the Roblox window to the middle of your screen.
3. If It Does Not Work
- Check your display scaling is 100%.
- Raise the delay between actions if the game is slow to open menus.
- Make sure the pet name is spelled exactly right.
New to macros? Read our safety guide first.

