Catch 'Em, like Popcorn, is based on an old arcade game called Avalanche. Using the joystick, one has to
try and catch all of the falling shapes without letting them hit the bottom of the screen. Each time one does
make it to the bottom, you lose one of your platforms, making it harder. There are
multiple waves of different shapes to go through; the first shape is shown in the above screenshot.
Like most other Dave Edson games, there are hidden messages in the code, that you can look at with
a dump program or the like. In Catch 'Em's case, see the following code offsets:
Offset $6ed-$71c
Offset $91f-$941
Title: Catch 'Em
Author: Dave Edson
Publisher: Aadvark-80
Released: November 1982
Requires: Color Computer 1,2,3, 16K RAM, tape or disk, joystick.