Thanks for having a play
Quote: "29th Sector?"
I actually quite like that: 29th Sector, 29th Parallel, Invaders From the 29th Dimension. I'm not above littering a game with the number 29.
Quote: "I would like to use the touch screens for inputting the left thumb as a screen locator as if its button is a mini-map of the screen"
That's quite a cool idea. It might be better on a larger screen as it there's more screen area to devote to it. The other idea I like is just to use relative movement. So touch anywhere on the screen, push up and the player moves in that direction, a bit like a on screen track pad.
Quote: "My hand blocks the screen and I miss things (like enemy bullets) that mess me up"
Is this an issue you're having with this game or just in general?
Quote: "I am not getting far though, and wish there was a score"
How far did you get? Did you see the big enemy firing bullets in all directions?
It may be that the level is too hard for a beginner. It might require a more gentle learning curve. I've been playing it quite a lot - I don't have many games on my phone - so have probably lost sight of how easy or difficult it is.
The level is finite, with five waves. If you see the big guy I mentioned then that's the last wave so if you see him you've almost won.
The way the level is structured is that the enemy waves are just based on a timer so they spawn regardless of whether or not you killed the previous wave. I might change this, as it's easy to get overwhelmed - which was kind of part of the game play - or, conversely, the player kills everything then has to wait for more enemies to turn up.
As I mentioned in my first post, I've not decided on the overall structure of the game. I could add a score, it probably gives the player a sense of progress. I might even add a infinite score attack mode or it might be the way the game is played.
It's early days so I can tweak it.