AstroFlutter Nodle is a side-scrolling endless runner set in space, featuring retro 1-bit graphics. The game offers a continuous, random generated level design. Players control an astronaut with a jetpack, navigating through space obstacles and challenges.

Key features:
- Retro 1-bit graphics with smooth animations
- "Endless" gameplay
- Simple, addictive gameplay focused on avoiding obstacles and distance traveled
- Score-based progression system

Players flutter through space, avoiding obstacles and trying to travel as far as possible to achieve high scores. The game's difficulty likely increases gradually as the player progresses further.