This game had a bit of licensing controversy between the creator and Sony - with it ending up that the creator barred Sony from ever releasing or rereleasing the game again.
If you like Tetris (like I do) - you will love this game (like I do)
Offering unique gameplay - your task is to mark a spot on a platform as "qubes" cascade towards you. When a cube lands on the marked spot, you detonate the area removing the "qube" from the playing field. You must remove all the "qubes" before they push yo to the edge.
The best thing I like about this game is the music - it's "over the top" angelic choir music and gameplay narrated up by a god-like Patrick Stewart (Capt Picard on Star Trek TNG) voice.
Once you understand the concept and learn to mark "qubes" in advance - you will be able to easily advance.
You are given an IQ score based on how many "qubes" you clear.
And by the way - it is supposedly a measure of IQ so the actual name IS SPELLED "Intelligent Qube"