I've never really made any games with Multimedia Fusion before, but I did used to play a lot of freeware games back when I was younger, and I see that some of them came from this very community!
Hats off to the developers of these games for providing me with many hours of entertainment during a time when I had almost no money and my computer was a potato that could barely even play flash games. Some of my favourites:
Zone Runner
Zone Runner 2
Eternal Daughter
Within a Deep Forest
I didn't discover this game till much later but it was fun too:
Lyle in Cube Sector
I don't know how relevant this is since the following aren't from TDC, but here's a couple other 2000s era freeware games I enjoyed that were also made with Clickteam software:
Hello Andrew and welcome to TDC. It's good to hear you've had so much fun out of Click games, and I agree that all of those games are definitely classics.