Increase stats:
To easily raise your stats, get your Hotel score to 100% and get four stars for your Hotel goals, then go to the computer in your room and check out all stats to get an outfit. This can be done three times, afterwards your stats will continue to raise. Make sure you have a good relationship with Mama Hogg and the Goth chick.
Finishing things instantly:
To finish things instantly, just set the DS system clock forward to the time it takes to complete whatever it is that you are doing. For example, if you are buildign a room which takes eight hours, set your DS system clock 8 hours ahead.
Refill sanity meter quicker:
To refill your sanity meter quicker, go to the hotel basement and turn right down the hall. Enter the door at the end of the hall and you will be in a freezer that has a piece of meat hanging from the ceiling. Go up to it and punch it to make your sanity meter refill faster.
Free milkshake:
To get a free milkshake, go to the part of town with all the cows. Tip one of the cows over, then select “Milk” to get a milkshake. It can be sold for 2 Simoleons at the store.
Additional aliens:
To get more aliens on your save, set the system clock forward one minute. Load your saved game and walk around for a minute. Save the game, then set system clock back to real time. The bellhop should say that you are a time traveler and that the aliens have launched a full scale attack. When you see the clock, touch it or you will lose all your sanity.
Mummified Alien:
To get a Mummified Alien worth 375 Simoleons, enter the Desert with your Metal Detector. Find the crashed space ship and use your Metal Detector in that area to find the Mummified Alien.
Rat Cave:
When you go in City Hall, do not build the “Rat Cave”. Tristan Legend will build it at no charge with additional progress in the game. This will save you 3,000 Simoleons.
Stop wires from getting chewed:
In order to prevent the mole or worm from chewing on the wires, spray it with water several times.
Walk slowly:
Set the Nintendo DS system time ten minutes behind. Then, go back into the game. Somebody will call and say that you are an alien, and you will be able to walk very slowly. Take a shower to make the effects wear off.
Fast Social:
Note: Save the game before attempting this trick. To perform this trick, you will need to have Optem Alfred living in your penthouse, and have every room built including the Bovine Shrine.Set the Nintendo DS system date to October 31 of the next year. Restart the system and start the game. You should have several messages. One of them should be the cashier at your hotel who says that a friendly ghost came to the hotel. Check for the ghost in these locations: Art Gallery, Mamma Hogg’s Saloon, Hotel Lobby, Atrium, and Basement. When you see him, go to a person nearby and do a Social with him or her while close to the ghost. He will watch and make the Social go faster. When the mini-game is done, you will now make the social go faster for every person you socialize with. Go up to the ghost. To the right side of the screen you will see the words “Mood neutral” and there will be two selections which are “xxx Ofix mood social xxx” and “Give gift”. Select the first option.