Switchblade II glitch?

[2d gamer]

Hello all. I have a question for all you other Switchblade fans. Why is the final boss so easily defeated compared to any of the other bosses? I mean, they let you stand safely on the left cliff/ledge and shoot it from a distance away from harm. Is this a mistake? Oversight by game creators? Emulation error (I was using Handy at the time)? Or maybe the end boss is "supposed to be easy" like the end bosses in Gradius games always are?

[dudeydude]

Was the conversion handled by Gremlin Graphics(The games creators)? If yes then its bound to be an oversight because Gremlin make later levels and bosses HARD on other titles. If no then I genuinely have no clue...