I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released, I may do unstoppable damage. What am I?
A bullet inside the dark tunnel of the barrel is triggered when one pulls back the trigger to strike and prime the gun powder of the bullet to propel it forward which will then cause damage.
Every time you try to move ahead, I am bent on pulling you back instead. Is this struggle for mobility, an exercise in futility? Either level or somewhat inclined, With progress feed back I am designed. Whether you choose to walk or to run, You always end up where you've begun. What am I?
First you need to get on track Before I start my attack
Once you relinquish control Then my parts may start to roll
A few stages you must pass Before applying the gas
Finally you make it through Your shell has been made like new
What am I?
