At this point I should probably mention a few things about Goki and myself so people know why we're chiming in on this. Goki (hope you're OK with me...
Called my local Kmart to see if they had any Velocitron toys in stock, and the staff member told me no, but that another Kmart 9km away had stock. So...
That's a linguistic transference thing, applying English word-stress patterns to foreign words. :) If it was pronounced the long-middle sound English...