Of course there's more...

All of the handhelds of the time got ports, with varying degrees of success.

Best of them is the #GameGear port, which is basically the #SMS version with a smaller viewing area. Still plays great.

#AtariLynx has some impressive zooming, but plays quite slowly.

The #GameBoy port is something of a miracle it runs at all. It's okay... a bit fiddly, and requires vertical scrolling too much.

The #GBColor is much the same, but more, um, colourful.