if you wanna know how to beat that thing you can push Shift + D at the same time and type in "dbugkill"(without brackets).
it's gonna work but don't use it too much because
it's gonna kill every enemy on the level in 4-5 uses. the game will become boring.
I completed the game (almost)
but i still wanna open the locked door on the second island. Does anyone except for that Shaper (forgot the name)has the key to it???