It's been about 20 days since the last update, and now I focused more on bug fixes, optimization, and balancing. Here's something that has been done:

• Unneeded textures removed, and all the others resized for a performance gain on CPU and video memory (30% on video memory) without visible change;
• All enemies has been balanced (life and speed);
• Stages balanced;
• Fixed the bug when upgrading the speakers when there's two bases close to each other;

For futures updates here's what I'm working:

• Ram improvement;
• Trading cards;
• New speakers and a speaker selection screen;

I created a new thread on the forum, so we can discuss about this update.

If you liked the game, please post a review here on steam, that helps a LOT a small game as RnrD.

Thank you very much!