Inklift

One tentacle, held down

Ollo can't really swim yet. Left alone he sinks, and the dark at the bottom of the screen rises after him.

So you hold. Wherever your finger presses, his tentacle lashes out and sticks to the first thing it touches. A drifting dumbo octopus carries him up at its own lazy pace; the rope reels in, he swings, and the moment you let go he flies on with everything the swing gave him. Lean with your finger while you ride and the swing grows.

A double tap puffs ink: a little jet upward, and a cloud that leaves anything hungry blinking for a few seconds.

Who will give you a ride

Every animal goes up its own way, and learning their routes is the whole craft.

• Dumbo octopusSlow, steady, always rising. A kind first ride.
• NautilusBobs up and down. Let go at the top of the bob.
• Lantern shoalZigzags fast and shakes you off after two seconds.
• Ribbon oarRare. Sprints straight up. Hold on as long as you dare.
• CuttleHovers, then darts. Timing is everything.
• Harbor sealLoops and plays in the moonlight near the top.
• AnglerDangles a glow that looks exactly like a ride.
• Jelly curtainOne brush and you're stung loose.

Beads ride in the mantle

Glowbeads hang in the water and pop out of the animals you grab. Ollo carries them inside his mantle, glowing a little brighter with every one, but they only count once he passes a string of lantern jellies. Get swallowed before then and the beads go with him.

Sepia, an old cuttle with half-moon spectacles, turns them into a longer reach, a firmer grip, more ink and new skin patterns. Twenty-one marks wait to be lit on the Moon Chart.

Four ways up