(There's no video for 3Tris yet. Please contribute to MR and add a video now!)
This game is, for me, one of the main reasons that I would HAVE to keep OS9 up and running! -There is still not, to this day, a similar game on OS X.
It's like tetris, but in 3 dimensions. (duh!). -the screenshot shows it all.
You have to play with 2 hands! (or... well - if you really wanna know it: one hand double-input).
(often, I have been thinking to go into app-programming, and - I would do it so that I could copy this very game for OS X!).
Here is how to play it.
3Tris_2.1.1_Color.sit (129.26 KiB / 132.37 KB)
System 7.0 - 7.6 - Mac OS 8 - 8.1 / compressed w/ Stuffit
Emulating this? It should run fine under: Basilisk II