They were a gimmick. I bought a bunch on clearance at K-Mart years ago. You connected them like blocks (they were magnetic) and the little characters would 'move' into each others cubes and do random things (unique to the cube they were in). There were also larger ones where a bunch of the characters could come together for a 'block party'. It was interesting for about an hour.
No but easy to look up & see they are Radica Cube World Slim & Scoop Interactive Game.
Also even though it has "game" in the description this is probably more a toy
these definitely more akin to a toy than a game. it were these tamagotchi or virtual pet like things.
basically a stickfigure would be in his own cube and do its own thing. it would also have a unique item to interact with ( a pet or ball).
By stacking these. you could make cube cities and the stick figures would enter eacother's cubes and do something.
it was a very neat and cool idea but ultimately these things were a bit on the expensive side when they came out and had less interractions than say, a tamagotchi which were far popular, more portable and had more actions/visuals/
This was my fidget cube back in the day as a kid.
Omg i loved these and probably still have all my old ones somewhere