here are some free sounds, all either 8 or 16 bit.
idk they can be used for ui or something you choose, no credit needed.
kthx bye
edit: if you happen to upload these audios, and are generous to make the asset free, please post a reply containing the link so other users don’t have to pay for the same sound. 
Well made sounds, though it takes a minute for a tablet to load it…
That would be a problem out of my control.
I can make a rubber duck with this.
Thanks!
Nice! That’s incredibly creative to associate that with a duck, and I can totally see it fitting perfectly!
Wow these are super cool, some of them really vibrate through my soul if you know what I mean. 
If I make a space - alien attack type game, Ill make sure to use some of these sound effects for lasers or whatever. 
Thanks! This should help me with my button SFX!