Crossfire is a decent clone of the arcade game Targ, in which you must blast your way out of an all-sides attack. Simple gameplay, but surprisingly fun, as Trixter observes in his capsule review:
The Good: Crossfire starts out as an easy game of reflexes: shoot everything you can in all four directions. The more insects that get released into the grid, the harder it gets. After about five minutes of playing, you're intensly aware that your life hangs by a thread, and the entire world around you disappears as you concentrate on not merely blowing away the bad guys, but staying alive!
The Bad: The keyboard controls allow you to move and fire in all four directions, while the joystick controls, by design, only allow you to fire in the direction you're moving. This is not a problem that is easily solvable, since common joysticks of the time only had two buttons, but they could've used the second button for something.
The Bottom Line: More fun than you would normally think in such a simple game.
Review By HOTUD
English 
Comments and reviews
High priority game back in the software piracy trade game in the 80s. Must use keyboard, giving you most control. Develop a shoot as the insects/aliens start to come out of their starting location. Idea is to get all 4 of the gems, 100, 200, ... points. A lot harder as less insects come at you, for the speed of the game accelerates very fast with less objects to move around the screen. Joystick play is worthless. Highly recommended game if you can look at a spot in the screen, and digest all the activity going on, peripheral vision as one mentioned.
Wow!. had the game on floppy disk. But it's too simple to be of interest for most today.
This is one of my top 3 games on the C64 and it is one of my top 10 games in 2020. Very good.
Great game and great training for your peripheral vision
No comment nor review for this game at the moment.