Guides/Game Guides
Game GuidesAHK Vault Team · 4 min read · Updated Oct 3, 2026

How to Use the Pet Simulator 99 Fuse Pets Macro

How to use the AHK Vault Fuse Pets macro in Pet Simulator 99: what it does, what to type in the pet name box, and how to tune the delays.

Key takeaways

The macro opens the Super Computer and the fuse machine itself, so you do not need to open them first.

You must type the pet name before you start, and it has to match the in-game search exactly.

It fuses the same pet repeatedly through your inventory slots.

Roblox must be open and in Pet Simulator 99.

1. How to Start

  1. Open Pet Simulator 99 in Roblox.
  2. Open AHK Vault, choose Pet Simulator 99 and launch Fuse Pets.
  3. In the Fusing tab, type the pet name.
  4. Press F1 to start. F2 pauses and F3 exits.

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.

Frequently asked questions

PS99 Fuse PetsPet Simulator 99 MacroFusing MachinePet FusingAHK Vault

Written by AHK Vault Team

The team that builds and maintains the AHK Vault macros.

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