Caveman Alley is a term used to describe a popular arcade game from the 1980s. The game involves two players competing to collect the most points by shooting fireballs and avoiding obstacles. The two crossword solutions for the term Caveman Alley are FIRE (4 letters) and OOP (3 letters). FIRE stands for Fast Interactive Real-time Environment, which is a type of computer programming language used to create the game. OOP stands for Object-Oriented Programming, which is a type of programming language that allows developers to create objects and manipulate them in the game.