StarLink

This is a 2D Space Shooter game that has 3 ascending levels of complexity. Each level has 3, 6 or 9 enemies. To advance the level, the player has to defeat all the enemies!

The modifications are:

1. The game has three levels.

2. Enemies were added. The first level has 3, the second has 6 and the last one has 9 enemies.

3. Each level has a different environment.