Well, just a brief wave idea for this topic, guys.
This wave will be met at above 40% difficulty and above, also it will be zoomed out.
Here’s how the wave looks like, a “broken pipe” with a portal at the middle.
The portal in this wave will spawn intermittently 4 - 6 enemies each turn. The enemies behaviours are all the same, they’ll go up for a while (some of them can go over the top of the screen), then “fall down” with gradually increasing speed (like a free fall). They’ll still be slow enough for you to try to destroy all of them.
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This image will explain the behavior more clearly.
Boi! See ya in the next topic! =w=