NN555Serpent

NN555Serpent is an offline snake trail game built for short, focused play sessions.

Play three distinct modes:
- Classic Survival for open-ended runs on a 14 x 14 board
- Step Collection for ordered target runs with a 60-step limit
- Route Campaign with handcrafted levels, narrow corridors, and moving hazards

The game focuses on planning safe turns, growing a longer body, and building score through clean collection chains. The board shows score, length, combo, step count, and the current target so each run stays readable at a glance.

Helpful features include:
- Swipe control with adjustable sensitivity
- Speed assist, sound, vibration, motion effects, and theme controls
- Local progress tracking for best scores and cleared route levels
- A replay view that keeps the last 12 steps after a failure
- A pause countdown before play resumes

All progress stays on the device. The game does not require an account, cloud sync, or an internet connection to play.