Cut the Rope

Om Nom sits at the bottom of the screen waiting for candy, and the candy hangs from ropes, bubbles, and other rigged-up contraptions above him. Cutting a rope drops or swings the candy, and getting it into his mouth is a physics problem more than anything — timing, momentum, and where things are anchored all matter. Each level also scatters stars around that are harder to collect than the candy itself, so full completion takes more care than just feeding him. It's simple to understand in the first level and noticeably trickier by the tenth.