Small Update

I just reworked some stuff and cleaned up some code. The bug where the game wouldn't end if you lost at round 1 and 2 is now fixed I don't know how that was overlooked.

The stun enemies are now buffed so they now stun the player for 1.5 (used to be 0.8) seconds on regular and hard difficulties

Shield enemies start spawning at round 9 instead of 10, this is because rounds 7 8 and 9 played out the same but with more enemies. With this rounds 7 and 8 will be similar but then after that the game should get more interesting.

Round 13 is now the round where only speed, stun and shield enemies spawn. 

Other rounds past 13 will be varied with the types of enemies you get. Ex. one round could have a higher chance of stun and shield enemies spawning.

I added a mute sound button, by default sound is on just click the sound on button at the menu to mute all sounds. 

Removed the exit button, it was useless.