Could be, I never owned that one. As an oh-so-sophisticated 10 year old gamer the idea of a module featuring the action-figure characters struck me as unbearably lame and cheesy (and, to be perfectly honest, it still kinda does...).Mystaros said:It could also be XL-1, Quest for the Heartstone, which also has an isometric map and a waterfall.
More info here: http://www.acaeum.com/ddindexes/modpages/x.html
Cover here: http://www.acaeum.com/ddindexes/modpages/modscans/xl1.html