Astro Chase ?-?-83


This is an earlier version of Astro Chase that was found in the collection of a former Parker Bros. employee and is the third known Astro Chase prototype to surface.

This version isn't really playable and is more a tech demo showing how the game would eventually look.  The graphics are mostly complete (including some nice touches that were taken out of later versions), but the sounds and music are missing.  The enemy AI isn't complete nor is there any collision detection and the the scoreboard is just a static placeholder.  The player can fly around the screen and shoot, but that's about it.


There are no space mines
There are no force field generators

The player cannot select different levels yet

There is no music

There are no sounds

The enemy graphic will change after about 15 seconds.   The game will cycle through eight different enemy types then repeats back to the first.
There are eight different enemy types instead of two in the final.  The extra enemy types were probably removed due to space reasons.
The enemy AI is very incomplete.  Enemies will simply circle around the player in an 'infinity symbol' pattern
There is no collision detection with enemies and they cannot be shot.  The Mines similarly cannot be shot.
The Earth will spin if you leave it on the screen for a few seconds
The Earth reappears at the bottom/side of the screen when scrolling to the edges.  This actually happens in the final version but is quickly removed, although you can still see it briefly.
The player ship has an animation that makes it look like it is spinning
The scoreboard at the bottom of the screen is a static placeholder and does not change.  Interestingly the 3 and 4 in the middle line appear to be corrupted.
Pressing the Select button will cause the game to reset
Pressing the Reset button will cycle through different planet graphic patterns (although the maze layout stays the same), but will eventually crash the game.  The number of times you can do this before the crash seems to be random.
There appears to be an extra object, a round dot.  This dot acts like a planet if hit (the player bounces off) and will sometimes appear in place of some of the other planets.  It is unknown if this was intended to be a third type of planet or something else such as a space mine or force field generator.
The Astro Chase logo is missing

Note the garbled numbers in the static scoreboard?

Pretty to look at, but you can't play it

There are eight different enemy types

Here are those round dot planets

Happy little enemies...

You can see that I'm hitting the barrier on the edge of the screen but Earth is still visible



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