4. Know your enemies, friends, and obstacles around you

Many obstacles stand in Om Nom's way but there's just as many friends that appear to help him. So along with exploring each level like I stated in tip #2, make sure you're also aware of what each friend brings to the table. For example, in levels where Lick is present the first thing I always do is tap on him to see exactly what he attaches himself to. That way I can see clear paths and tie in the other objects and obstacles relatively easily.