your bigger fruit, while at the same time don't make yourself lose the game. some people recommend using the left corner of the screen to create bigger fruits with, but i tend to use the right side.
tip 6: if you're doing well and getting into levels where it gets faster, survival is key. try as hard as you can to make sure you're still racking up points, though don't panic and start stacking. that will get you nowhere. i would still try and make all of the same colors touch, so that when a fruit bomb comes, you can wipe those out and have more room, plus points, but the 