Strike! is an achievement that can be unlocked in Among the Sleep.
How To Unlock[]
Once you find a way out of your crib, in the corner of your room to the right of the rocking horse are ten colored bowling pins. All you need to do is knock down all ten pins however you want; walking/crawling through them or holding on the bowling ball and using that to knock them down. Once the tenth pin falls down, the achievement will unlock.