Yume Kojo: Doki Doki Panic is the early version of Super Mario Bros. 2, it was released only in Japan in 1987 for the Famicom Disk System.
Here are 20 differences between these two classic games, highlighted with stylish synchronized comparisons: the world in SMB2 feels more alive thanks to several animated objects, there are differences in music and sound effects, reworked enemies' behaviour, loading times... and more!