Tunnel Fly – Hold-and-Release Cave Flight
Tunnel Fly puts you in a side-scrolling shaft whose ceiling and floor undulate like a double sine wave. Hold to lift, release to drop—there is no separate flap tap. Distance becomes your score while the gap gently shrinks and speed creeps upward.
Updated 2026-08-03 · single
About this game
The craft tilts with vertical speed so you can feel when you are climbing or diving. Walls are continuous ribbons rather than discrete pipes, so smooth hold/release rhythm matters more than frantic mashing. Press R anytime for a clean restart after a scrape.
Controls
| Player | Keys |
|---|---|
| Player | Hold Space / click = up · release = fall · R restart |
Common use cases
- Train hold-vs-release throttle control in a single continuous corridor.
- See how far you can ride before the narrowing gap clips your wings.
- Use a short flight as a focus reset when you need one calm control scheme.
Tips
- Feather the hold near peaks and valleys instead of slamming full lift the whole time.
- When the gap shrinks late in a run, keep the craft near the local center line of the wave.
- Click-and-hold on the canvas works the same as Space if you prefer pointer control.
FAQ
How do I go up in Tunnel Fly?
Keep Space, W, Arrow Up, or a pointer press held. Lift applies while held; releasing lets gravity pull you down.
What makes a run harder over time?
Travel distance slowly closes the tunnel gap and nudges scroll speed up, so late flight needs smaller corrections.
Is scoring based on time or distance?
Score rises with distance flown through the shaft—roughly every stretch of progress adds points.
Do I tap repeatedly like Flappy Bird?
No. This build uses continuous hold-to-rise rather than discrete flap taps.