Squares?

As a new "game developer" this is my second project (on Godot) and also made in about a 4 hour time-span (with about 2.5ish hours actually being used for the project)

You play as a Blue Square. There are up to 3 Red Squares on the top left; each one represents 1 HP. There are up to 5 Orange Squares on the top right; each one represents 1 Ammo. There are 9 Dark Red Squares on the bottom; each one can hold up to 3 Red Squares. When you (Blue Square) are above one of these you are able to shoot the Enemy Red Squares, destroying them. When 3 Enemy Red Squares form a column on the same Dark Red Square you quickly lose 1 HP (Red Square) and the Enemy Red Squares on that Dark Red Square immediately get destroyed that Dark Red Square cannot spawn another Enemy Red Square for an extended time. Enemy Red Squares spawn-rate slowly increases with time. There is no ending the game and dying will just restart you; there are no sound effects. (If you actually read this far, good job)

Clicking "W" or Up Arrow generates 1 Ammo (up to 5).

Clicking "A" or Left Arrow and "D" and Right Arrow moves you Left/Right respectively

Clicking "S" or Space-Bar or Down Arrow shoots at the column you are over; consumes 1 Ammo.

You are intended to only use 1 set of keys (like only WASD or the Arrow Keys)

No Sprites or Sound Effects were used in this Project. Everything seen in the game was made inside of Godot (mainly using "ColorRect" nodes)