Coding Super Mario Bros in Java! Current progress on day 4 of working on recreating the original Super Mario Bros from scratch using just java and its standard library. Part of this challenge is to do this 100% on my own, without looking at other people's code for reference. This also means that I cannot use sprite sheets that others have made.

Update:
Added Luigi. Apparently in the original, Luigi can only be played in 2 player mode. But for my version, now every time the player dies, the character swaps between Mario and Luigi. After all, this is Super Mario BROS not just Super Mario am I right? ;)

Added items in question blocks - coins, power up mushrooms, flowers.

Added the koopa troopa turtle. When koopa is stepped on, he hides in his shell and when the shell is touched. Goombas are not destroyed if the player collides from the top, stomping on them.