"Og!" (originally called "Trog") was the second game I wrote for the Amiga. It was a fairly short, sideways-scrolling game in the Wonderboy style. It used pixel-perfect collision detection routines and ran in 32-colour mode. I revisited it later and made a much more colourful AGA version which had 64 colours, much smoother sky colours and screen fades, and a 1-bit parallax background layer.
Outside of the game itself, it's really not very polished, and has pretty awful music (that's the downside of doing eveything yourself!).
Unfortunately, my Amiga Hard Drive seems to have died, and I can't find a version on floppy disc. So for now, this version is officially lost.
This has now been located, and is available to download below!
It has a pretty horrible title screen, and my continued apologies for the music. It's definitely prettier though.