It's a platformer with a twist: you can destroy walls with ammo, blow up strategic spots with dynamite, and build bridges to help you move to platforms that would otherwise be too far.
Also, just like Super Mario World, you can ride a character to give yourself more abilities. In this case it's a goose.
I'm surprised at good it is for a 1993 release. In terms of graphics and sound, this is quite competitive with SNES and Genesis games. And if I had this in 1993, I would have been quite happy.
This game was also released on Atari ST, Amiga, iPhone, Android, and Windows. Amiga is probably the best version due to superior sound and graphics -- though I haven't played it.
Sadly, the iPhone, Android, and Windows versions have disappeared completely. Not only are they abandonware, they've become lost media.
I should also mention there's an unofficial port to PSP.
Now how does it compare to platformers of the era? Well, you won't mistake this for Super Mario or Sonic -- it doesn't have the same level of polish. But it does have a surprising amount of depth that has entertained me for hours. It's at least as good as Commander Keen and Jill of the Jungle.
This game looks almost exactly like a game I used to play called "Cosmo's Cosmic Adventure".