Yeah, you can probably find replacement components for your monkey game out there. Maybe not the exact same components, but compatible ones.
That's the hard part, even if the exact chip was made, the program needed on chip couldn't be copied from elsewhere.
This handheld is like Nintendo's game watch series.
Unlike modern screens made of millions of tiny movable pixels, game watch screen contains a fixed layout of pre-drawn shapes (like a ball, a character's arm, or an enemy) on its LCD.
The internal chip sends electricity to specific segments, making them turn dark (visible) or transparent (hidden).
For my game watch-like handheld, the chip's working on segments that turn on and off to create the illusion of movement (the monkey's kid, the monkey's left hand, monkey's right hand, the bees, and the banana).

UK Gambling machines are mostly slot machines. But unlike the Slot Machines depicted on television, these machines have other features which I believe mostly bells and whistles.
My mother tells me they are likely rigged, as in they only give winnings to a certain number of players. And that in some places you get those just hanging around slot machines like subtle vultures, waiting for the right number of people on the machines to play, until they take their turn and win.
What bothers me if, if you go into a "family arcade" in Wales, you'll likely find it consist mostly of these machines than any other arcade machine.
Okay, the photo showed it, that's definitely banned in our country and I'm sure in most country, it's limited to certain age for people to be able to access them so I don't understand why your country allowed them being presented in family arcade places.
Not banning or age restriction will stop people for playing it though since right now it came in digital form as online gambling (which is more easily rigged so i don't know why people still want to play it but the reality is that they're still popular).
Of course they're banned too here but now it's harder for government to monitor since everyone could be played it from their closed room now.