"Well, I hadn't seen a gun before. I simply assume that means there are other things down here that I've yet to see, but I couldn't possibly narrow it down to a category. There's only one thing for it- we search!"

He beckons Bakugo to follow him, tail swishing playfully.

"I won't be easy to impress, but I have high hopes regardless. Perhaps we can even find you more weapons."

Since Bakugo seems to like them. After all, he pocketed the gun.