Touching Lola causes the device to vibrate, the display of hits to be incremented (increased by one), and Lola to move immediately to a new location.
Touching the screen but missing the mole causes the display of misses to be incremented. Pressing the Reset button resets the counts of hits and misses.
PetLola is based on 'MoleMash', itself a game inspired by the arcade classic Whac-A-Mole™, in which mechanical critters pop briefly out of holes, and players score points by whacking them with a mallet. MoleMash was created by a member of the App Inventor team, nominally to test the sprite functionality.