1-10 TRITON
×3 Hippoe variant — 7000 HP, 200 dmg Area Attack at 222 range. Tough first encounter in ItF Norway but a glorified Hippoe once you have Valkyrie / Bahamut and ItF Treasures.
Tankier Metal — same critical-only rule.
Faster, stronger Shibalien with 35% Warp chance back 750 range. Slowable/freezable like other Aliens. Bahamut can one-shot in its first appearance.
St. Pigge's Alien variant — 60,000 HP, 250 AP area attack at 170 range with 100% Wave Attack. Common peon across CotC. Wave-Immune frontline keeps the line stable; Anti-Alien clears her.
Shibalien Elite as boss with light peon support. Anti-Alien with Warp-Immune cats (Bora line, Catellite) makes this trivial.
Unrestricted gap stage — one of four 'free' stages per chapter (Earth, Triton, Deneb, Mertoz). r/battlecats treats Triton as a 'breathe and farm' beat between Mercury's MAX 20 and the next restriction cluster. Light enemy mix: Hyppoh + Metal Hippoe + Shibalien Elite + Elizabeth the LVIth. No headline boss; the Metal Hippoe is the only thing that breaks momentum if you bring no Crit cats. Lineup: anything that worked at 1-1 Earth still works here. Add Island Cat or Crazed Whale for the Metal Hippoe. Common failure: under-equipping for the Wave Attack on Elizabeth the LVIth (100% Wave) — Anti-Wave frontline or kill her fast before her backswing lands.
BAZIFENIX S Anti-Alien Uber primary — 100% Barrier Breaker + 100% Weaken vs Alien handles every Alien threat on the stage 
LUMINALIA S Anti-Alien LR tank — ~1.9M effective HP vs Alien + Warp Immunity, stalls anything the stage spawns 
AWAKENED BAHAMUT CAT S Speed 60 multi-hit Special rusher — front-loads burst on Alien peon waves 
HOLY VALKYRIE CAT A 350-range area chip with 35% Freeze on non-Metal peons — long-tail crowd control