3D Ball Blaster

The game starts in a shop. You have a choice of 8 weapons and 8 power-ups.
You can use the cursor keys to select the item you want to buy. Pressing the SPACE key will buy the selected item, provided you have enough money. Your ship has a limited carrying capacity, therefore there is a limit on the number of each type of item that you can carry, eg. You can only carry 5 land mines.
Pressing the S key will switch the shop into selling mode and you can sell any item you have. Pressing the SPACE key will sell the currently selected item. To return to buying mode press the B key.
You can also use the TAB key to switch between Buying, Selling and Exit mode.
Press ESC or D to exit the shop, or use the TAB key to select the Exit button and press ENTER.
When you exit the shop you find yourself in your 'SpeedStar'. At the bottom of the screen you can see the weapons you have bought and a general map of the current level.

What is abandonware ?