Various General Tips
There are 40 unique troll characters, so try to get them all. The more trolls you have, the more buttons you'll collect.
Besides being difficult to find, rare trolls are also capable of getting to a higher level, so they are worth the trouble.
You get new resources by upgrading your patches. Do it as soon as you can.
You also get more buttons with the same amount of trolls if you level them up.
You can buy various stuff in the game's Market, but some of the offers are only available for a limited time, so keep an eye out.
Besides daily offers, there are also daily quests that you can do every day to get more experience points. Depending on the quest, you can also get the Golden Cupcakes, so make sure you do them.
Make sure you play the DJ mini-game as soon as it becomes available. You will get more points for playing this rather simple little game.