Trone Slayer: Slimes

In Trone Slayer: Slimes, you will be simply shooting slimes and trying to get scores as high as possible ! After 30 scores (once) the map will expand. 1 Kill = 1 Score.Each slimes have 3hp and you have 5. (Note that this is my first game, expirience with coding) :) This is a 2D game so it doesnt require good pc. I want to release updates in the future(New maps, mechanics, enemies, better graphics, android support??? ...), so if you have any good ideas type them in the comments!