Hi Ciogames!

This game has a solid 2D top down player controller. It's nice and responsive. And I like how the art style is original. A couple of tips:

• As a developer, the game makes a ton of sense when you are building it. Why? Because you designed it, of course! But sometimes this doesn't translate to your players, which can make the game confusing or people might think it doesn't work. My suggestion, hand the game off to someone and DON'T tell them how to play. Take notes on every question they ask you, and then update your game to answer those questions in your absence.
  • Our gracious host MS ANNOTATION X mentioned a tutorial. That would help to solve this problem, but a simple "How to Play" menu would also do the job!
• In Unity, you can tag the collider you have on the outside of the play area as a "Destroyer." Then, with your projectile's "OnCollisionEnter2D" method, you can have the bullet destroy itself when it contacts anything with a "Destroyer" tag. For a small game like this, it doesn't always matter, but if you ever make bigger projects, those stray bullets will eat your memory and cause performance issues. In fact, I experience quite a bit of lag playing this game. 
  • For a more advanced (and memory efficient) method, take a look at this tutorial on object pooling! https://learn.unity.com/tutorial/introduction-to-object-pooling

Keep at it! I love the visuals this game has, for being made with only MS Paint :)

Best Regards,

Brandon from TheIndieDream

Good controls! The rounded shape of the ground looks nice! I liked how the ground's colour change from time to time! 

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Suggestions:

• Add audio -- That would make the game feel alive
• Possibly, replace the enemies that are on the HUD with colours that have a number on top of them -- That would be good because the enemies that are on the HUD aren't the ones that get spawned; that made the game confusing
• Destroy bullets when they touch the wall -- Bullet takes a long time to get destroyed when it collides with the wall isn't so good

Bonus:

• Add a tutorial -- I didn't know what to do at first 
• Maybe, make the enemies interact with each other - for example, the red enemies destroy the blues once, but they don't interact with red enemies 
• When I change the colour, change the colour of the bullets too