Yes, I think it was Fantastic Dizzy. Also it has the best grafix of them all.
AFAIK there are the following Dizzy adventure games on the Amiga:
Treasure Island Dizzy
Fantasy Word Dizzy
Dizzy & Prince of the Yolkfolk
Magic Land Dizzy
Don't know about any others ever made on the Amiga.
But there are some games very similar to Dizzy like Giddy I & II, Slightly Magic, Seymour goes to Hollywood, Little Puff in Dragonland and probably others.