1 - Does the hectic aspect seem balanced? And if not, what aspects aren't? For example, enemies being too quick/slow, etc.
The game overall is too easy for sure. I was able to complete each level with the second upgrade of the first tower. The game length or difficulty needs to be altered by increasing enemy health and possibilities of variants.(regen, armored)
2 - Is the balance between using stardust for towers and using it to feed the blackhole sufficient?
No, it is not, the upgrade to the first tower is too strong and I could kill every enemy before they reached halfway through the level.
3 - Do you have any particular ideas for towers?
I would like towers that had ranged attacks or attacks that could be controlled by player choice, like selecting a spot on the map to point towards
4 - What different terrain/level topography ideas do you think would be fun and interesting?
I feel like having a tower that could only attack from a distance fun idea with topography, the higher the tower the further range.
5 - Does the flow of the game feel moderately smooth, and in what ways if not?
The game runs at 160fps on my machine and I didn’t find any real issues running the game itself.
6 - Is the UI intuitive and understandable? Any comments on adding/removing/clarifying anything to it?
I feel that the arrow to advance the level is still not enough to register that innate feeling that this is what I need to press in order to start the level mentality. Maybe making the box green and changing the arrow to a Go button would help with this.
7 - There is currently no elemental effects/immunities implemented, so besides these, what kind of different behaviors might be interesting for enemies?
I feel that the possibility of destroying the tower with some kind of its own attack, would force the player to actually spend the gems collected from defeating enemies.
8 - Did you find any interesting strategies during your gameplay? If so, please let us know what you found, and if not, tell us how we can give you more opportunity to strategize.
The games overall length per level is not sufficient enough to allow players to develop strategy other than placing the ring tower where two paths intersect. I did find an issue where if an enemy was killed while they fell to a lower level their gem would not spawn.