Ghost Tubes: Color Sort

Halloween Monster Sort is a spooky Halloween-themed color sort puzzle game with dark gothic haunted house visuals. Tap vertical tubes to move cute blue monster sprites between columns, gather all identical monsters into the same tube to clear each stage, earn star rewards and unlock increasingly complex multi-tube challenge levels.

Core Sorting Gameplay Rules
Each level features several vertical hollow tubes filled with blue cartoon monster avatars and empty white placeholder slots. Tap a tube that has a monster on its top layer to pick up the sprite, then tap another target tube with available empty space to drop the monster inside.
Only the topmost monster inside any tube can be moved at one time. You can only place a monster onto an empty tube slot or stack it directly on top of an identical blue monster. The stage is fully cleared once every tube holds only matching monsters (all tubes contain pure stacks of the same creature with no mixed sprites).

Progressive Difficulty & Level Unlock System
Difficulty rises steadily across numbered stages:
1. Level 1 (2 tubes): Introductory tutorial with only two vertical columns, extremely simple sorting with minimal moves to teach basic transfer mechanics.
2. Level 2 (3 tubes): Adds one extra tube, requires moderate planning to separate monster stacks and consolidate matching creatures.
3. Level 3 (5 tubes): Expands to five vertical columns, mixed layered monster stacks create complex sorting paths, demanding careful step-by-step movement planning to avoid dead-end stacks.
Clearing any completed level grants +10 star currency; players can watch reward ads to claim a bonus +100 star bundle for faster unlocks.

Spooky Halloween Gothic Visual & Full Game UI
1. Background Scene: Dark scratched metal textured backdrop framed by classic Halloween decor: hanging white spider webs, cartoon spiders and paper-cut bat silhouettes on left/right screen edges, creating a haunted dark holiday atmosphere.
2. Top HUD: Centered green level number label; left sidebar holds star counter, level list menu button and round reset/restart icon; top-right corner features mute sound toggle and home page shortcut button.
3. Game Play Area: Vertical transparent tubes arranged in a horizontal row, each tube has limited internal capacity for stacking monsters.
4. Level Complete Popup: Dark cracked bat-themed panel displaying "GREAT" clear notification, star reward gain, replay level button and next level forward arrow button. A reward video banner sits below the popup for bonus star currency.

This low-pressure sorting puzzle delivers relaxing Halloween casual fun for all ages. No strict time limits let players take their time to plan every monster transfer step, with dozens of progressively harder tube-sort levels to master in the eerie haunted monster world.