Unfortunately, I can't describe this game well since I only played it briefly almost 15 years ago but I remember it being very original and fun. Ocean Software's Head Over Heels is highly revered by Spectrum owners(the computer where it originated) and it was ported to other computers as well.
It's an isometric action/puzzle game where you control two creatures(Head and Heels). Head can jump high and Heels is fast. The coolest thing is that you can combine the characters to form one creature.
Hopefully, there's someone here who can describe this game better.
http://www.c64gg.com/Images/H/Head_Over_Heels.ss.gif
