I'm looking for a new title for the game. Got one, but need to research more to see if it's available: STAR DUST. I tried some fonts and I think I'll use the one called Ruslan Display.
I polished the algorithm for alien explosions today. I'm also thinking how will the enemy waves look like. There would be 10 waves of enemies, and then a boss and after that the game would speed up a little bit and some new enemies would be introduced. At each tenth level (10,20,30...) there would be a new, unique boss. This algorithm would repeat until player dies. The speed would be capped at 2x starting speed as it seems to me that takes a lot of effort to play if you want to destroy all aliens.
And then, there will be powerups. Here are current ideas:
Time limited, collectible during game:
Permanent, can be upgraded between plays:
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