Blocks Annihilator is a clone of the "Collapse!" genre; as the screen slowly fills up with coloured blocks you must click on a group of 3 or more adjacent blocks of the same colour making them "collapse", the more there are in the group, the higher your score - but should any column reach the top of the screen, the game is over! With each level filling up the screen faster and with ultimately more colours you have to have quick reflexes and an eye for detail to win the game!

There are 2 modes, "Stalagmite" which fills up the screen from the bottom and "Stalactite" from the top and an "Arcade" option which makes each level start immediately instead of pausing at the end until you press Play to go on.

Power-up wise, coloured bombs will destroy all blocks of the same colour, black bombs will destroy all blocks that surround it.

A tip which is not advertised anywhere in the rules is that the beginning, slower levels can be speeded up nicely by clicking on the line that is currently being filled up!!

Small in file size yet with great features and nice sounds, this is an excellent game and fantastic alternative to "Super Collapse!", Blocks Annihilator is an addicting game the whole family can enjoy.