Home Page Forums MAME MAME TMS-09xx/1xxx thread (was New Dumps)

I think Monkey Kingdom and Treasure Island are the only tri-screen Tronica's I know of:
https://www.handheldmuseum.com/Tronica/MonkeyKingdom.htm

https://www.handheldmuseum.com/Tronica/TreasIsl.htm

Is that the layout you are referring to as 'vertical'?
Games laid out the other way might be a V-Tech Tri-screen like this:
https://www.handheldmuseum.com/Vtech/RabbitHop.htm

But there's probably Tronica's I've never seen too...