RollerCoaster Tycoon

Build an underground path, let guests go on it, then delete it. The guests fall down into the ground.

Before a guest pays to enter the park, rename it to John Mace. This will make that guest pay double your entrance fee.

Place plenty of benches near the roller coaster exit paths. Sick guests will sit there after the ride, allowing them to eventually feel better. Also place benches by snack bars. Pick up sick guests and let them sit like that for a while.

Dig a large hole and place a large amount of guests in it. Raise the water level to watch a mass drowning of guests.
Build a path that leads to an elevated platform or bridge. The platform or bridge should be several squares all around. Once you have lured a group of guests onto the platform, delete the path(s) that led them there to trap them. Underneath the platform, create a massive body of water (or you can create the large body of water first, then build a platform over it.). Delete the platform and everyone will fall into the water. Make a water slide. At any point that you can, have a sheer drop, normal drop, sheer drop, and normal drop again. Make sure it is an open track, and not a tube track. After the first drop, it will fly off the track and crash. Build the shuttle loop roller coaster and change the speed to 60 mph
to send the people on the ride soaring through the air and then crashing to the ground. Build the shuttle loop roller coaster and increase the speed to 60 mph. The coaster will launch off the track. Research until you get the Steel Coaster or Corkscrew Coaster. Build a station, and then behind it, build a sheer incline with a chain. Put a sheer incline at the other end of the station to make the coaster appear to come back down. Set the mode to reverse-incline and open it. The coaster will go backwards up, and when it gets to the last track it will continue to be pushed by the chain and be forced over the edge of the last track.

To kill guests on any roller coaster, make it go high up, drop down, then up again. When it goes up again, do not build a crank. End the roller coaster. Make it so there are as many trains as possible, but with only one car. When the roller coaster goes down, it will not make it up the hill, and will slam into the next car. It will then explode, killing the guests.
Make a shuttle launch ride, and for one part do not add any track. Make about four stations and ten track, and they will fly off leading them to their deaths.

To kill a guest, make a path and put in one hedge maze. Make it so hedges, etc. cover the exit. When there are a lot of people on it, delete the ride. Then, make water where guests are standing and they will drown.

Build a roller coaster with a very long waiting line and open it with a very cheap price. Wait until you notice that the ride is full. While people are waiting to ride immediately change the price to the highest to force them to pay. Note: People that do not have money will not pay and will leave the park. Build the Go Kart ride and create a very long waiting path. Make sure the price is free. Advertise your new ride. When you have a huge line, increase the price, but keep it under $10. Everybody who can afford it will pay that much. When the line dies down, lower the price back to free, and repeat.
Increase your sale of food and drinks by putting the shops on the exit portion of a ride. However, you must keep the prices at a reasonable price. You can also put the rest rooms there, and put a charge to use them. Build any ride which is popular (for example, Shuttle Loop) and make a very long queue. When the queue is full, raise the land directly
outside the entrance, blocking it. Then, raise the entrance fee to that ride very high, and to get out , the people have to pay to go on the ride to exit.

An easy way to get money very quickly is to open a roller coaster that you would price very high. Then, wait for the people to pay for the ride and get on. Pause game play, close the ride, open the ride, and the people that paid for the ride will get off very quickly so that more people can get on. Build a souvenir shop and set the umbrella price to $20 and people will buy it when it rains. Once the monorail is available to build, make a plot of land with a few paths linked together. Do not link these paths to any other path. Make sure this is enough to sustain about 20 to 40 guests. Build many rides and shops in this space that you do not have elsewhere in your park; perhaps repeat some of the rides people love (such as slides and shuttle loops). Hire a mechanic and a handyman (and an entertainer and a security guard if desired). It also helps to add some scenery. Then, build your monorail linking this secluded patch of land to your main park. Make sure the price of the monorail is reasonable, or you will be dealing with some unused rides. Guests will pay to get to your lovely patch of land, and they will have to pay to get out. When it rains, put out a lot of information desks or souvenir shops out. Set the price for an umbrella very high.

Rename a guest to Melanie Warn. This will increase that guest's happiness level.

Set your research to just roller coasters until you receive a steel or inverted steel coaster. Build a lot of power launched mode rolle rcoasters( such as the Shuttle Loop). This should increase your park rating and guest numbers. If you set the advertisements all at four weeks your money, park rating, and guests will all increase. Add five to seven additional handymen to your staff. Your park rating will increase dramatically by the next week.

To keep all your guests in your park, put a no entry sign at the entrance turned around so they cannot exit. After getting the required number of guests in your park, raise the land right before the exit/entrance to the park. Go to the entrance of your park and build a bridge. Then, make a hole under the bridge so the people will not get out. Get the desired number of guests into your park, then remove the piece of land at the start of your park entrance.