Changes compared to previous version:

• Trackball support has been added (Thanks PlotNick).
• Touch screen controls has been resized.
• An option to hide the touch screen controls has been added.
• Pushing the back arrow key while 'game over' is displayed does no longer quit seawasp.
• Leaving the 'game over' message by touching the screen does now always return to the main menu.

Changes compared to previous version:

• Three levels of difficulty ("Easy", "Normal" and "Hard") has been added. Each ship scores 1 point in difficulty level "Easy", 3 points in difficulty level "Normal" and 5 points in difficulty level "Hard".
• A new option called "Crossing ships cost a life" has been added. Default state is enabled, which causes the player to lose one life if too much enemy ships cross the screen.
• The destination buttons on the world map are now easier to push/hit. They can now also be pushed by moving into the button.
• The width of the on-screen buttons has been doubled.

Changes compared to previous version:

• Velocity/difficulty level has been raised (Thanks Marco).

Changes compared to previous version:

• A world map has been added.
• Some minor visual improvements has been done.

Changes compared to previous version:

• Reward system has been added. The following rewards are available:
  +1 additional torpedo
  Start with +1 life
  Allow +1 enemy ship to pass
  Increase spawn rate of power-ups
  Smaller player submarine
  Increase player velocity
  Increase player torpedo velocity
  Increase player torpedo reload rate
  Decrease enemy velocity
  Decrease enemy torpedo velocity
  Decrease enemy torpedo shot rate

• Power-Ups do no longer spawn if the level is almost finish and there would be not enough time to collect them.
• The buttons at main menu have been rearranged.
• The free 'Lite' version allows only three rewards.