Fourfit

Your task in this action puzzler is to keep the Buckingham Palace bins neatly
arranged. Pieces will drop towards you and they must be arranged in a neat
line, so as to activate the destruction mechanism. Unfortunately, they have
not been neatly arranged, and drop towards you in a range of uneven shapes.

In case you can’t tell, this is a Tetris-influenced game. It’s written in GFA
Basic and using single-colour shapes on a black background, with 10 skill
levels.

Fourfit