Sharp 80: Built-In Software Library
Sharp 80 includes a software library in the installation. Here's how to use it.
Hit the F3 key to show the disk manager:

Hit the number of the floppy drive you wish to use (probably 0):

Hit the L key to see the categories of software:

Hitting 2 will show Games:

And 1 for Action & Adventure games:

Let's pick 8, then F8 to start the emulator, and... Robot Attack!
