Spyglass

The strip along the bottom tells you what you are looking for: a teal fish, an orange boot, a yellow key. Simple, until you look up and see the scene is packed with keys and only one of them is yellow. Everything is in plain sight, which is exactly the problem.

Then it starts messing with you. From level 5 the scenes take turns with four complications: the lights go out and you only see what's near the middle of your screen; everything drifts so nothing stays where you saw it; objects swap places every few seconds; things fade in and out of fog.

Controls: drag to look around, pinch or scroll to zoom, tap or click to grab. A wrong tap costs you 5 seconds, so slow down and actually look.