Thanks, I thought a little about moving the cannons close together, but couldnt wrap my head around how to do the controls for mobile :v
The powerups you unlock tend to make you overpowered, Im gonna explain them in order
1. (Highscore >= 5) Outline Circle; Adds a visual outline to know the cannons path
2.(Highscore >= 10) Bigger Bullet: its a Bullet, but bigger. It doesnt deal more damage, but if shot between 2 targets it can hit them both
3.(Highscore >= 15) Connection: join Both cannons with a tube that distributes bullets evenly, Basicaly it would split each speed power up you pick up between both cannons.
4.(Highscore >= 20) Better Speed Power Up: allows Better Speed Power up to spawn (although it has a small chance to do so). Its twice as powerful as normal power up
5.(Highscore >= 30) SlowTime Power Up: allows Slow Time Power up to spawn (although it has an even smaller chance to do so). It slows down time during 3 seconds excluding player movement (Player shoot speed and bullet speed is slowed down although).
6.(Highscore >= 40) Double Cannon: Your Cannons become Double Cannons, shooting twice as fast.
I didnt have time to balance all unlocks so having them all basically turns you into god :v (I have pictures of people with Highscores over 100).
the most powerful are Connection and Double Cannon in my opinion
Progress is saved between playthroughs, so if you close and open the game you should still have your Highscore, Settings and Unlocks (dont know if you uninstall though).
If you feel controls are too sensible, you can adjust them at options.