Use the E, D, S, and F keys to move, J to fire.
K makes fired bullets explode.
Tap the key to change the direction, hold the key to move.
Yes, I'm aware that you can fly off the page ;)
Choplifter II originally by Broderbund Software, Inc.
and is © 1983, 1991 by Dan Gorlin.
prototype.js © 2005 Sam Stephenson
chopper.js © 2005 Ian Langworth