By request, here is the hack for Dream Dresses by Breaktime Studios. The same hack also works for all other Breaktime Studios games: Pocket Potions, Sweet Shop, Dragon Skies, etc..
*Working as of 1 December 2013* *Warning* I woke up this morning to find that I couldn't connect to Campus Holiday (but somehow I've been unbanned from Campus Life) ....
This game, like ME3 Multiplayer, forces you to buy RNG packs to unlock items. Soooo much easier to do when you have infinite (well actually 999,999,999) coins/money to unlock all.
Thanks to R for taking the time to share this! I strongly suggest to anyone that attempts these steps to backup the original file before editing each and every time..
***UPDATE 15 MARCH 2014: As of the last update, the Free Mermaid Spins hack no longer works! Some people have reported that this hack works, so go try it! :)***.
UPDATE: As of November 2012, it appears that this hack has been patched and no longer works. Backflip has modified the gamerules file so it's no longer editable (and it.