Arnie is a basic action game. You make your way through a battlefield set in a factory, air base, naval base, or POW camp with little variation from a set path. Play revolves around dodging bullets, missiles, mortars etc while you take out the things firing them. You start with some grenades and a pistol, but you can pick up better weapons during missions.
The graphics are ok (they remind me of Desert Strike), and the animations are nice. Keyboard control isn't very good and you're forced to use the QAOP keys for movement so use a digital joystick if you have one. You can move and shoot in 8 directions, but it can be hard to get Arnie facing diagonally to shoot something or throw grenades.
The space bar is used to fire, but holding it down for a second and then releasing it causes Arnie to throw a grenade which can be annoying. You also can't control the distance the grenade is thrown. When you pick up different weapons you can use the Enter key to cycle between them, but be careful because when you die you lose the weapon you're currently using. To quit it seems you have to wait until your mission is over (or you're dead) and you're at the mission selection screen then press Escape. The Pause key pauses the game.
