BrickShooter for Casio BE-300 - description from Softdepia.com:
BrickShooter for Windows CE is a 100% original combinatorial mindgame. You send bricks from all the borders to the island in the middle, and when 3 bricks of the same color meet they annihilate each other. It looks so easy but try to beat all levels ;) Pocket BrickShooter is a great way to be creatively occupied!
Current version is 1.90. We add to this version:
Quick step-by-step tutorial
Compatibility with Casio BE-300 units
New records system
Draw index feature for grayscale units
Additional support for handheld units
BrickShooter for Casio BE-300 is a "Free to try" program. You can download and try it for an evaluation period.