There are no official cheats in the client, but there are a few workarounds
I made a post just a couple of posts above yours with some unofficial fixes to the 0.27 client. You can use that to get some limited cheats. You get 10x the amount of money working in the hotel as Kate (i.e., $300 per shift instead of $30) or cleaning the pool as Max (i.e. $400 instead of $40). It makes the grind easier instead of eliminating it altogether coz, let's face it, a DS game without the grind doesn't really feel authentic
The other option is to modify your saves to your heart's content. If you're on the 0.27 client, press
Ctrl+Shift+I
to open the debug inspector. Go to
Application
->
Local Storage
->
file://
. Locate your save file, and modify the values. If you're on the 0.25 client,
l8rdude made a save editor that you can find in the FAQ in the extras section in the OP.