This is the Mac OSX port of Jumping Jack - Further Adventures, (c) by Neil Walker

From the Website:

Hello and welcome to Jumping Jack, The further adventures of Skunk McGeordie 

It may not be football.  But it's better than sex

Press F1 in the game for instructions or read the actual menu instructions 
The first few levels are quite boring to get you into the swing of it.  The best thing to do is to give yourself a few dozen auto-geordies and play death-match on level 5 or so (cheat mode is better in death-match ;) 

Instructions 

Progress through 9 increasingly difficult levels to obtain the new Jumping Jack poem and free Skunk for his misery. 

Alternatively play death-match with 0 to 4 human players and up to 200 computerised opponents in a single level.  0 players means you want to watch the computers. 

Either way, get to the top and avoid the gaps and hazards.  Falling to the bottom row will lose a life. 

Game Play 
In single player mode you use left/right to move, up to jump and down (Action key) to enter a safety zone, available on each level.  Watch your score line as you only receive a set number of 'safes'.  At the end of each level you are given a password to allow you to go straight to this level if you die, an extra life, a new 'safe'. 

In death-match mode it is first to the top.  Once you are in a 'safe' zone you can press the  action key again to unleash a fireball which will burn all players on that level and all above. 

Technical 
A new gap is added every time you jump through a hole in single player.  In death-match it is dependant upon the number of players to keep the game consistent.  There is a maximum allowed for each level.  Scoring is dependant upon the level and is how many gaps you jump. 
The ordering, positioning and moving of gaps and hazards is consistent with the original Jumping Jack game. 
The game is written to work at 30 (default) or 60 Frames Per Second 
The sound system utilises your sound card to play as many samples as it can.  so the better the card, the better the sound! 

Keys 

Left, Right, Jump, Safe/Fireball are: 
player 1 - cursors 
player 2 - zxqa 
player 3 - nmuj 
player 4 - 1352 

F1 - Help on all keys 
F2 - Toggle showing FPS (frames per second) 
F3 - Turn Auto FPS on 
F4 - Grab the current scene as a bitmap 
F5 - Pause 
F6 - Show player numbers. 
F8 - Toggle music on/off 
F9 - Toggle sound effects on/off 
F10 - Quick exit. 
ESC - Exit the game. 

FAQ 

Q. Is there a cheat mode? and what does it do? 
A. Yes and it does what you may or may not expect and the password (hint) is fairly close to home (hint again). 

Q. It does not show the game.  It stops after it has finished creating the players. 
A. This is because it is taking longer to process the players than it does to display it, i.e. the FPS is too low.  Use ESCape to exit.  The fix is to increase the FPS.  See next. 

Mac port by Peter Hull 2004. The folder 'Mac' contains the Mac-specific makefile; if you have the full distribution you can copy the makefile in there and compile it for yourself. You'll need Allegro 4.1.x or higher.