Thanks so much for playing dude, and yes adding controller support is not hard with Construct 3, pretty easy actually. So, to spoil the ending: At the end you fight the Alchemist Master and use the Philosopher Stone to get your tail back but the stone curses you to grow in size, the size of a planet, and curses you to live for eternity trying to eat your own tail.
Glad you understand the purpose of the traps, i feel it was kinda risky design choice, as one shot kill traps are super infuriating lol