Collect All Pets Fusing, Shinies & Metallics
Fuse five pets of the same rarity into one pet a rarity higher. That is the reliable climb from Common toward Prodigious. Shiny variants raise Shiny Score (Grotto/Grove). Metallic variants are rarer endgame skins behind Metallic Luck.
How fusing works
Five Commons → one Uncommon. Five Uncommons → one Rare. Same pattern through Epic, Legendary, and Prodigious. The fused pet is stronger than the five you spent, so income jumps even if you “lose” four pets from the dex count — discovery still counts pets you have seen.
Fuse often. A pile of duplicates does less Gold per second than the next rarity. The Fuse All pass is convenience only; you can fuse by hand for free.
Shinies
Each hatch, fuse, or generated pet has a chance to be shiny. Shinies are stronger and add Shiny Score. You need 100 Shiny Score for Grotto and 1,000 for Grove — that is why early Meadow/Forest hatching still matters: volume of hatches is how shinies appear before luck upgrades.
Shiny luck codes and Grove luck upgrades help later. Do not skip fusing while you wait for a lucky shiny.
Metallics
Metallics are a rarer skin layer on top of pets. Metallic Luck (Grove / rebirth / Factory upgrades) is required to see them at a useful rate. They are endgame — get a Prodigious team, Grotto/Grove, and rebirth upgrades first.
Higher metallic tiers (including polished / titanium-style upgrades) exist in the late Factory loop. Treat the in-game upgrade text as the live rules; names and caps change.
Equip slots
Only equipped pets smash crystals. Keep your highest-rarity, highest-damage pets equipped. Extra equip slots (game pass or upgrades) speed Gold; they are not required to finish the collection.