I recall playing a version of the "Asylum" adventure game on a TRS-80 Model III compatible computer, with its blocky graphics. I was very amused when I discovered the piano-falling-on-head quirk.
I never got past the part in the labyrinth with the mirror, apparently only the second phase of the game (a friend later told me how, but by then I did not have that computer anymore).
They are relatively good but absolutely terrible. -- Alan Kay, commenting on Apollos