(There's no video for s'ydnar squares 2.x yet. Please contribute to MR and add a video now!)
S'ydnar squares is an arcade game similar to Tetris, but with lots of genuine touches, such as 12 different tile sets to choose from, background music, 7 levels of difficulty, etc... When you pile tiles, the overhangs continue to fall down and there are special tile squares that contain acid which breaks all squares immediately underneath.
S-ydnar-squares.sit (393.26 KiB / 402.7 KB)
s'ydnar squares v2.0b5 (1994) / compressed w/ Stuffit
At least 1.5MB of free RAM
Mac OS 7.x - Mac OS 9.2.2
Emulating this? It should run fine under: Basilisk II