I.T. Kid

Heli Attack 2 gives you a soldier, a rifle and an open clearing, and then it fills the sky. Helicopters arrive in waves and stay until you knock them down; weapons and upgrades are dropped in by your own side, so the longer you survive the louder the game gets. Its publisher's own one-line summary is the whole design: 'Helicopters come at you in waves, your mission is to take as many choppers down as possible. Pick up weapons and upgrades being dropped by your allies.' The portal that carried it at the time, Ultimate Arcade, says it at more length: 'You are an elite soldier, your jet fighter was destroyed, how long can you survive.' Move with the arrow keys, aim and fire with the mouse, and press Up to jump -- press it again in the air to hyper jump on top of a helicopter. The rest of the controls are era-typical and generous: change weapon, and a time-distortion key for when a wave is coming in too fast. The archive aggregated 64 Miniclip games and this one is from the same portal's shoot-'em-up shelf, held in its own upload tree all along without ever getting a page.