Gremlin

## Description

In _Gremlin_ the player controls a Gremlin tank and must try to remove all
targets from the playing field before the time limit is over. The tank can
move in four directions and can shoot in the direction it is facing. The
targets are represented as spades and will explode when hit destroying all
adjacent targets as well, including the tank if the player stands to close.
When this happens the player must wait a couple seconds before receiving a new
tank.

Gremlin