This is a puzzle game I created for fun and to get used to LUA.
Eliminate all active blocks by making rectangular selections having the same color in all four corners. Eliminating active blocks increases the timer. A level is finished when all active blocks are gone.
Start selection by holding the (B) key.
Move the cursor/selection by using the cursor keys.
Nice little game!
Didn't quite understand the instructions to begin with but soon got into it.