Tools you need :
1) Cheat Engine 5.5 or Here
2) Firefox
3) RC Tools 4.4
4) Flash Player 9

Open your RC Tools v4.4
1) Copy the hotkey [U] [I] [P] and [Y] into your Cheat Engine
2) Remember to set to 8 bytes and check Also scan read-only memory. Once done, click First Scan
3) After the scan, get the address and paste back to RC Tools Get: box

To Freeze your Staff's HP
1) Copy the hotkey [N] [M] into your Cheat Engine
2) Remember to set to 8 bytes and check Also scan read-only memory. Once done, click First Scan
3) After the scan, get the address and paste back to RC Tools Get: box

On your Cheat Engine, you should get this results below:
SS Waiter/Cleaner - Supersonic waiter and cleaner
SS Cook - Supersonic Cook, cook at an instant
SS Bill - Clear the dish at a Supersonic Speed
Sonic Crazy Customer - Customer enter, leave and shit at a Supersonic Speed
Jackal Worker's HP - Freeze HP at 100%

Tools you need :
1) Cheat Engine 5.5 or Here
2) Firefox
3) RC Tools 4.0

Guide on how it is done :

This cheat will freeze your staff energy

Open your RC Tool v4.0
1) If you using Flash 9, copy C85D89C33B28408B
1) If you using Flash 10, copy C45D89C33B28408B

Open your Cheat Engine
1) Select Firefox as your process

Part 1
2) Paste the code either C85D89C33B28408B or C45D89C33B28408B into the Hex box, set to 8 bytes and check Also scan read-only memory.
3) After the scan, get the address and paste back to RC Tools Get: box

Part 2
4) Paste the code FC5D89C33B28408B into the Hex box, set to 8 bytes and check Also scan read-only memory.
5) After the scan, get the address and paste back to RC Tools Get: box

Once done with Part 1 and 2, click Get Code. Copy the code and paste it to your Cheat Engine.
You will see "Freeze HP" under the description, right click it and enable cheat.

Your health will start increasing if you are having lower than 100%. It will increase till it stop at 100% and freeze.

Since everyone been asking on How do they stack items on Restaurant City, here's a guide courtesy of Restaurant City Tips on Items Stacking.

What do I need?
- 2 Speakers and a table


Step 1: Drag the first speaker and put it on top of the table.


Step 2: Once the speaker is on top of the table, drag the table out of the restaurant to the green and let it go. It will automatically be placed on top of the stacked speaker.


Step 3: Drag another speaker on the same spot or tile as the stacked speaker/table and it will look the illustration below.


Step 4: Drag the table and put it aside. Once done save it.

Final Step: Once you have save it, you will have a stacked item. In this case a mega speaker for your jukebox!