Hi, it's totally okay and thanks a lot for trying the game still!
As for the modes, I agree, no much have been added regarding the level's layout which is why the form's usage is lacking. The brief patch at the very least demonstrates their usage.
As for the shooting mechanic, it was pointed out by the others too, I just haven't added an option yet for holding the input to shoot simultaneously. You still managed to kill a lot of goblins in just a short amount of time 👀 (imagine the mashing of the buttons).
Now that the controls have been mentioned out again, I'll definitely include this fix in the next patch.