Switches look like black squares around the dots, with electrical-looking lines in them. When you match a dot that’s on a switch, it turns on — the black turns white, and you’ll see little electrical zaps around the borders. But if you match a turned-on switch, it turns right back off again.
You can see how that would get annoying. But, on the plus side, when you have all the switches in a particular group turned on, every dot becomes a bomb.
Nothing destroys a switch except a match. If a bomb, gem blast, or cloud zap hits a switch, it will activate it (or deactivate it, as the case may be). Sometimes switches will show up with empty holes because the dots are blocked from falling into them. Have fun with that.
Also, be careful of making squares (or switches being activated by lotuses or balls); you may find things activating and deactivating against your will.
In general, organizing your dots to turn the switches on all at the same time is all you have to do. But when things get complicated, what I’ve found is that you should try to activate the switches from the top down. If you start from the bottom and work your way up, it can be a pain to handle what’s happening on the top while also trying to get that one little switch near the bottom.
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