Oh man...MysticalChicken - I know exactly the one - a really tiny guy with much simpler graphics than keen, and the guy was definitely red... oh and I played that snowman skiing game too! Those were some of the best, yet it seems so few have played them. I think I bought a bunch on some CD value pack type deal...another great one was this really basic rpg - probably the first I played. I think it also came with a trial of Operation: Inner Space - another great game I'm not sure has been mentioned.
Anyhow, I've been looking for the name of the jetpack game for a while too, so I'll be sure to post it if I find it.

EDIT: The rpg was "Castle of the Winds"
EDIT: FOUND IT!!!!.....or at least I found the one I'm talking about hehehe - It was called MicroMan. You can find a site with a demo by googling "MicroMan's Crazy Computers 3.0".