Shapes!! is a reasonably simple puzzler that's all about turning blocks into a specific colour. Tapping a block changes its hue, as well as the hues of the blocks horizontally and vertically adjacent to it.
But any block that's already coloured in will change back to neutral if you tap a block near it. You need to fathom how to colour all the blocks in as few moves as possible.
It's not super challenging, but it's reasonably well put together, and easy enough that anyone can pick it up and have a quick play.
But as you play you'll find the lack of any real structure a little annoying. And while the core idea is reasonably solid, it tends to get a little repetitive after a while.
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