Move with w,a,s and d you can shoot with clicking and use abilitys with 1 - 4. you will just get them from time to time. You can hide the ability icons with e or the icon. Same for the music but with q instead you will get more buffs the more score you have, at 1000 you can't get anymore. to make it a bit fair, and more interesting, the more score you have, the more enemys spawn.some even better than others. If you are playing it on mobile, good luck. it is possible, but harder then on pc. you can activate the abilitys by clicking on them on the side, and move by that thing there in the left corner. Shooting is still done by clicking.
score event bord - ability 20 = ability 1 50 = ability 2 150 = abillity 3 300 = ability 4 (hold down) 450 = ability 1 buff 600= ability 2 buff 700 = ability 3 buff 800= ability 4 buff