Pick a battle card to attack. The buzzy is resistant to fire, along with the Dry Bones. The bob-omb has attack power 2 and Bowser Jr. has 10 lives and a 50% chance of double attack. It is also impossible to hit him with a hammer. Items(fire, mushroom, star) can be used only once per battle. Use the star only if you want to avoid losing at all costs.
Updates: v. 1.5.1 changed background v. 1.5 added Dry Bones and healing. v. 1.4 added Bowser Jr. and limited possible power-up use. v. 1.3 added battle cards and more attacks. v. 1.2 added bob-omb v. 1.1 added animated walking v. 1.0 release I decided to make this before I saw Brad-Games's project, so that's why I'm not giving him credit. Thanks to thesuperguidegames for the Mario sprite, zzstar for the hammer costume, and Brad-Games for the Bowser Jr. sprite. I got all the other sprites from sprite packs around scratch. The music is from cshscratchers. And of course thanks to Nintendo, because they own Mario.