What's this week's challenge all about? How do I get a combo? What's a combo with a 4x bonus? Help me!!
Don't worry - this week's Squelchies challenge isn't as crazy as you might think.
Put simply, a "Combo" is when you make several matches in rapid succession. The main way to do this is to arrange the playing field so that when one group of Squelchies goes away, they make the Squelchies below them fall up in such a way that they create another match.
For example, by placing a yellow Squelchie in the playing field below, we can create a match that, once the yellow Squelchies are removed, makes a match with the purple Squelchies.

This is called a Combo of 2 groups, and it earns you a 2x token bonus in the game.
For this week's challenge, you need to create a Combo of 3 groups, like in the example below. First, we create a match with red Squelchies. This, in turn, allows the blue Squlechies to come together for a match. When those Squelchies move away, the greens ones match.

Ta-daah! We've created a Combo of 3 groups (red, blue, and green), and we'll see this label on the screen to show that we've earned a 4x token bonus in the game.

If you see a label that says you've earned a 4x (or better) bonus, you know you've made the right Combo for this week's challenge.
There's one other way to make Combos: make matches really fast. If you're able to make a match in the playing field immediately after making a match somewhere else in the playing field, you'll often make a Combo.
Still seem too difficult? Here are some tips to make it easier to create Combos...
Tip #1: Play on the Easy or Beginner difficulty levels. It's much easier to make Combos with groups of 3 Squelchies than on the harder difficulty levels where you need to make groups of 4 Squelchies.
Tip #2: Look for the Magic Starfish. You'll often create combos when you activate this power-up.
Tip #3: Let the playing field fill up a little bit. If you're a really good player and you wipe out rows of Squelchies right away, there will never be enough in the game for you to make combos with.
Tip #4: Don't sweat it. If you're still worried about making Combos, don't worry about it. They often happen naturally when you're playing. Just stick to the Easy level, and you'll start making combos soon enough.
Now go get those Squelchies!