This is a little fangame I finished a couple weeks ago (as of this writing). Screenshots, a video, and downloads can be found here:
http://onpon.co.nr/bowsers-last-stand.html
Basically, you are Bowser. While you are "training" for your next battle with Mario, a group of toads breaks into your castle and declares that the Koopa Kingdom has been taken over. You are enraged! How dare the Mushroom Kingdom steal your job?! You need to take back your kingdom and seek your revenge against the Mushroom Kingdom!
http://onpon.co.nr/bowsers-last-stand.html
Basically, you are Bowser. While you are "training" for your next battle with Mario, a group of toads breaks into your castle and declares that the Koopa Kingdom has been taken over. You are enraged! How dare the Mushroom Kingdom steal your job?! You need to take back your kingdom and seek your revenge against the Mushroom Kingdom!