By the time you reach Ouranos Island in Sonic Frontiers, you'll be no stranger to the many Challenges that dot each of the game's maps. Even with Kronos, Ares, and Chaos Islands behind you, there will still be unexpected surprises as you traverse the largest area of all. From brand-new puzzles to the toughest versions of familiar ones, Ouranos' Challenges live up to their name!

Related: Sonic Frontiers: Chaos Island Challenge Guide

If you're stuck on any of the twenty-six puzzles in the game's final chapter, use this guide to find all of their locations, objectives, and tips for completing them.

M-079

  • Location: Just to the left of the starting point, along the main path. Look for a buried Vault Key nearby!
  • Reward: Red Seed

Step on the gold tile to begin. When the other tiles light up, jump to each exactly once without falling off or stepping on a tile you’ve already touched.

M-080

  • Location: On a hilltop south and slightly west of the Stage 4-1 Portal.
  • Reward: Blue Seed.

Activate the orb-shaped switch to begin. When a sphere falls from the sky, hit it before it touches the ground. Look for concentric rings emanating from the sphere’s landing point and run to it. You should reach the point of impact the moment before the sphere touches the ground.

Be careful not to boost, or you’ll go far past the sphere and miss!

M-081

  • Location: Along the ridge southwest of the Stage 4-1 Portal.
  • Reward: Red Seed.

Use Cyloop on the pedestal at the edge of the cliff to begin. When the ball appears, use Homing Attack to knock it through the five hoops in any order. The hoops left and right of the center one are slightly further away, so you’ll need to stand back from the ball before launching it to get the correct angle.

M-082

  • Location: Southwest of the Blue Emerald Vault.
  • Reward: Blue Seed.

Activate the blocks that look like Tetris pieces in order so that they match the sample on the pedestal. The correct order is Purple, Blue, Black.

M-083

  • Location: Northwest of the Stage 4-2 Portal.
  • Reward: Red Seed.

Stand in the ruins between the two loops, and jump over the laser as it swings downward. Continue playing jump-rope with the laser until the timer runs out. If the laser hits you or you step off of the pedestal, you’ll have to start over.

This laser makes quick double-swings, so you’ll need to double-jump each time.

M-084

  • Location: South of the Stage 4-4 Portal. Only accessible after extending the bridge to the northern island as part of Sage’s quest chain.
  • Reward: Blue Seed.

Stand on the green tile in the center of the pedestal to start the Challenge. Dodge left and right to quickly step on each tile as it lights up. The challenge will complete after twenty correct inputs.

M-085

  • Location: East of the Green Emerald Vault. Only accessible after extending the bridge to the northern island as part of Sage’s quest chain.
  • Reward: Red Seed

Hit the hourglass with Homing Attack to start the timer, then follow the blue targets to the goal. Be read for a sharp left turn after the second target.

The timer is tight, so you can get more time by tapping the Boost button when you have two targets lined up in front of you. Be careful not to overshoot!

Related: Sonic Frontiers: Kronos Island Challenge Guide

M-086

  • Location: Southeast of the Green Emerald Vault. Only accessible at night, after extending the bridge to the northern island as part of Sage’s quest chain.
  • Reward: Blue Seed, plus a Vault Key buried under the final objective.

Use Cyloop to activate the glowing light near the Challenge Marker. Another will appear nearby. Activate that one too, and so on, following the lights to the large ruin on the other side of the woods. Once you’ve activated the final light, you’ll receive your reward.

M-087

  • Location: North of the White Emerald Vault.
  • Reward: Red Seed.

Use Cyloop on the Tetris-like blocks in the correct order to match them on the example. The correct order is Gray, Yellow, Blue, Purple, Black.

M-088

  • Location: Southeast of the Yellow Emerald Vault, midway up the hill.
  • Reward: Blue Seed.

Hit the Hourglass to get started, then follow the targets to the Yellow Emerald Vault. You can afford to take it slow, especially since you’ll need to jump with precision to hit the elevated targets.