Roller Coaster Tycoon: Loopy Landscapes

Cheat mode:
Hold [Enter] while pressing one of the following keys to activate the corresponding cheat function. Repeat a code to disable its effect.

Effect	Key
See through land	1
Show park boundaries	2
See through all rides and attractions	3
See through trees	4
Remove supports on all rides	5
People disappear	6
Grid lines on land	7
Mark land with height markers	8
Mark rides with height markers	9
Mark paths with height markers	0
Black grass	H
Black dirt	V

Artist guest:
Enter Simon Foster as a guest name.

Increase guest happiness:
Enter Melanie Warn as a guest name. You can rename the guest to another name and repeat this on another guest as needed.
Metman64.

Increase park rating:
Enter John Bibrough as a guest name. Press L to increase your park's rating.

Waving guests:
Enter Katie Brayshaw as a guest name.
ftid a, mec, t yrapvh.

Hungry guest:
Enter Tony Day as a guest name. This guest will usually be hungry or very hungry.
Raymanjr.

"Wow!" thinking:
Enter John Wardley as a guest name.

Free rider:
Enter John Mace as a guest name.
Grasshopper.

Faster Go-Karts:
Enter Damon Hill as a guest name. Enter Michael Schumacher as a guest name to race even faster.

Slow and crazy driver:
Enter Mr Bean as a guest name before they get on the Go-Karts.
Woody Widrick.

Multiple names:
You can have more than one person with the same name (which works well when using the cheats) by changing the capitalization of various letters. For example Chris Sawyer can be used on another person by making all letters lower or upper case (chris sawyer and CHRIS SAWYER).

Hint: Follow the leader exit:
When your park is thriving, put up a "no entry" banner in front of the exit. A vast amount of guests who want to leave will not be able to, and will hang around by the exit. Note: Your park rating will drop. When you remove the banner, the crowd will stream out like lemmings.
Jakfat.

Hint: Mow the grass:
Go to the "Raise/Lower Land" icon and click on the piece of land that you want mowed.
Rodney.

Hint: Arid Heights:
When you first start Arid Heights, put a "No Entry" banner facing outward after a few guests wander into your park. Then, raise your park rating above 700. They will leave your park and your park rating will stay the same. No one will come back into your park. You can now develop your park about twice as easily. After you get a couple of good rides in, demolish the banner.
KEVINKTS2000.

Hint: Razor Rocks:
Instead of trying to build complex rides with a high excitement rating, copy rollercoasters from the already existing parks, since most of the prefabricated parks have rollercoasters that have very high excitement ratings already. To do this, Click on the rollercoaster that you wish to save. With that ride's window still open, click the "File" button at the top of the screen. Select the "Save Track Design" option Then, press save when the window opens. After that, go to the "Build" menu and select the type of coaster you saved. The new coaster is now there and can be built if you have enough money. Since there are not ten coasters in the other parks with high excitement, you can duplicate the small ones like the "Limit" coaster, then change the name and color. Your guests will treat it like a brand new coaster.
Texlegos.

Hint: Flying guests:
Click on the guest and when they swing back, hold the Right Mouse Button.
Derek.

Hint: Keep guests from exiting:
When your park is thriving, put up a "No Entry" banner in front of the exit. A vast amount of guests who want to leave will not be able to, and will remain near the exit. Note: Your park rating will drop. When you remove the banner, the crowd will stream out.
WeRRugrat.

Use the following trick to keep guests trapped without using space. Pick a guest that you want trapped in the park. When the window appears for what to do with them, pick them up. Instead of dropping them, just close the window to have them trapped forever without ever seeing them. This also stops them from getting happier/unhappy, hungry, thirsty, needing to use the washroom, or tiring out. This is best used when the person you have selected is very happy. If you are nervous about a goal requiring a certain number of people, you can use this to grab as many as needed. Alternately, you can empty a park while keeping ratings and number of people.
Adam Johnston.

Hint: Furious guests:
If you torturer your guests enough sometimes, you can make their faces turn red. Note: This rarely happens.
Kyle Pfeffer.

Hint: Flying guests:
Click on a person to bring up the screen. Click on the claw and when he or she swings back, press [Backspace].
Yugiohrules129.

Hint: Killing guests:
To make a bad guest die, go to the water icon and raise a small square of water. Select on any guest, take the tongs, and put them in the water. It takes about fifteen seconds for them to die. Another way is take the Whoa Belly ride when you get it. Do not construct the tower all the way up to the top. Instead, go to the little icon that has a pink and blue wheel object. Where it says speed, set it to 90 mph. The car will go flying off the tower in flames.
DixieChick41990.

If you want to get rid of a lot of guests quickly, put up "no entry" banner signs facing each other about three or four spaces apart in the most crowded area of the park. When you have the desired number of guests trapped, dig a hole under the path, fill it with water, and demolish the path. All of the guests that are trapped will drown.

Hint: Avoid ride crash:
When you know a coaster is going to crash, pause game play, press the "Close Attraction" button to remove the trains from the track, then reopen the game. Resume the game and they will be saved from a horrible death. Also, you will get some entrance money from the new people entering the ride.
Tommy_89.

Pause game play, pick up a mechanic, and drop him by the ride exit. Assign him to that ride and there will be a 50% chance that he will fix the ride.
Josh Wilson.

If you know that a rollercoaster's brakes have failed and it is going to crash, there is nothing you can do except demolish the ride. When you do this, all people on the ride will now safely be off the ride and it will not crash.

Hint: Resume after crash:
If a rollercoaster has crashed due to station brakes failure, even when it is fixed, most guests will not go on it because they think it is no longer safe. Demolish the ride (make sure you have saved the design first, if it is custom), and replace the space with the same ride. People will treat it as a new ride and you will also get bigger crowds.

Hint: Sky full of balloons:
Near the last month of your objective, if your about to win, build a lot of balloon stalls. Set the cost of the balloons to free and make them all different colors so the guests will buy a lot of them. Then when you win, your guests will let go of their balloons and there will be a sky full of them. Also, when the all balloons pop it will sound like fireworks.
ILUVDLPH.

Hint: Clickable items:
You can click on things such as ducks and balloons and they will make an action. When you click on a duck, it will quack. You can usually find these flying around somewhere, or in the water. If you click on a balloon, they will pop. They must first be floating in the air. You must build a balloon stall for this to be possible.
Lydia Newcomb.

Glitch: Flying boats:
Make a boat ride like the rowboats or the bumper boats. Set the water very hight and build it there. After you have as many people as desired on the ride, drain all the water. They will be flying. Note: They can fly over anything except park boundaries and land higher than them.
Sabin Figaro.