Zelink shippers should appreciate the closing acts of Echoes. Zelda reunites with Link and returns his equipment so both can team up in the final dungeon to defeat monsters and solve puzzles. She can create echoes at a distance through the double helices from my screenshot so Link can reach the center switch.
In Zelda tradition since 1998, where Zelda used her power to hold Ganon so Link could use his sword to deliver the final blow, both team against the final boss. In Echoes, Zelda helps through the fight, not just near its end. After Link and Zelda defeat the great evil, Zelda returns to her life before Echoes.
I may review Echoes later. For me, Echoes is no less than 9/10. Incredibly delightful, enough that I completed near 100%, except Hero Mode which I'll replay, Amiibo rewards, and maybe caves, chests, and rupees. I checked my cave markers against interactive maps online which mapped fewer entrances than I have.
Here's my list if you aim high too. Nothing should be permanently missable.
50 side quests
18 main quests
28 accessories, occupying 26 positions
5 accessory slots
5 Acorn Gatherings completed with the extra bonus prizes from fast times
8 articles of clothing
6 automatons
All dungeon content like chests, maps, and rooms
127 echoes
4 fairy bottles
3 Flag Race courses as course master
20 hearts
7 heart containers
40 heart pieces
16 ingredient types
Lv. 3 sword, bow, and bombs
Lv. 4 energy bar
Lv. 11 Tri
3 Mango Rush stages with 50, 60, and 70 mangoes harvested
All maps filled
150 might crystals
18 play tips
15 Shisho marks in Kakariko's Slumber Dojo
136 smoothie paths
69 smoothie types
10 special items under Zelda's ingredients
25 stamps
41 waypoints