Controls
| Joystick | Action |
|---|---|
| UP | Up |
| DOWN | Down |
| LEFT | Left |
| RIGHT | Right |
| ◯ ⬤ | Fire |
| ⬤ ◯ | Fire |
| ◸ ◥ | Fire |
| ◤ ◹ | Fire |
IO
Test your skills against diabolical alien beings and spacecraft. Collect smart-bombs or shoot the bombs to turn them into different weapon pick-ups. Add an orb to help protect your ship. Get bonuses and extra lives as you blast through each level, reaching the alien host who awaits at the end.
Scenario
DO YOU WANT…
The Slickest, fastest shoot-em-up ever?
Stunning gameplay that demands every ounce of talent and skill you possess?
Every kind of despicable alien fiend known to man in wave after wave of remorseless aggression?
Awesome graphics from the electronic brushes of Bob Stevenson?
Brilliant programming by Doug Hare that pushes your computer to its absolute limits?
IF THE ANSWER IS YES YOU WANT IO
Playing the Game
Controls
| Action | Description |
|---|---|
| Select one player game | Move joystick LEFT |
| Select two player game | Move joystick RIGHT |
| Start game | Press FIRE |
| Pause game | Press RUN/STOP |
| Resume game | Move joystick in any direction |
| Abort game | press Q |
Features
There are green pick-ups placed at various intervals. If you run into them they will act as a smart-bomb and destroy everything on the screen. If you shoot them four times they change into weapons which can be collected. These weapons increase your fire power.
If you have collected two weapons, the pick-up will become an orb instead of a weapon. As well as increasing your fire-power, these orbs are protective. You may carry up to two orbs at a time, and any further orbs that you collect will be worth bonus points. Each time you are hit you will lose an orb. If you are hit when you are not carrying any orbs, you will lose a life. Extra lives will be given when you reach 20,000 points and then every 50,000 after that.
Credits
PROGRAMMER: Doug Hare
GRAPHICS: Bob Stevenson
SOUND EFFECTS AND MUSICIAN: David Whittaker
THANKS TO: Simon Pick and Gary Liddon